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The repertoire of mutational signatures in human cancer (vol 578, pg 94, 2020)

NATURE 2023年第7948期614卷 E41-E41页

作者： Alexandrov, Ludmil B. Kim, Jaegil Haradhvala, Nicholas J. Huang, Mi Ni Ng, Alvin Wei Tian Wu, Yang Boot, Arnoud Covington, Kyle R. Gordenin, Dmitry A. Bergstrom, Erik N. Islam, S. M. Ashiqul Lopez-Bigas, Nuria Klimczak, Leszek J. McPherson, John R. Morganella, Sandro Sabarinathan, Radhakrishnan Wheeler, David A. Mustonen, Ville Getz, Gad Rozen, Steven G. Stratton, Michael R. Department of Cellular and Molecular Medicine Department of Bioengineering Moores Cancer Center University of California San Diego CA USA Wellcome Sanger Institute Wellcome Genome Campus Hinxton UK Department of Cellular and Molecular Medicine and Department of Bioengineering University of California San Diego La Jolla CA USA UC San Diego Moores Cancer Center San Diego CA USA University of California San Diego San Diego CA USA Broad Institute of MIT and Harvard Cambridge MA USA Center for Cancer Research Massachusetts General Hospital Boston MA USA Massachusetts General Hospital Boston MA USA Department of Pathology Massachusetts General Hospital Boston MA USA Harvard Medical School Boston MA USA Laboratory for Medical Science Mathematics RIKEN Center for Integrative Medical Sciences Yokohama Japan Computational Biology Program Ontario Institute for Cancer Research Toronto ON Canada Programme in Cancer & Stem Cell Biology Duke-NUS Medical School Singapore Singapore Centre for Computational Biology Duke-NUS Medical School Singapore Singapore Programme in Cancer and Stem Cell Biology Duke-NUS Medical School Singapore Singapore Programme in Cancer and Stem Cell Biology Centre for Computational Biology Duke-NUS Medical School Singapore Singapore SingHealth Duke-NUS Institute of Precision Medicine National Heart Centre Singapore Singapore Singapore Cancer Science Institute of Singapore National University of Singapore Singapore Singapore Institute of Molecular and Cell Biology Singapore Singapore Laboratory of Cancer Epigenome Division of Medical Science National Cancer Centre Singapore Singapore Singapore Duke-NUS Medical School Singapore Singapore Human Genome Sequencing Center Baylor College of Medicine Houston TX USA Dan L. Duncan Cancer Center Baylor College of Medicine Houston TX USA Department of Molecular and Human Genetics Baylor College of Medicine Houston TX USA Genome Integrity and Structural Biology Laboratory National Ins

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Spintronic superconductor in a bulk layered material with natural spin-valve structure

arXiv

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arXiv 2020年

作者： Sakuragi, Shunsuke Sasaki, S. Akashi, R. Sakagami, R. Kuroda, K. Bareille, C. Hashimoto, T. Nagashima, T. Kinoshita, Y. Hirata, Y. Shimozawa, M. Asai, S. Yajima, T. Doi, S. Tsujimoto, N. Kunisada, S. Noguchi, R. Kurokawa, K. Azuma, N. Hirata, K. Yamasaki, Y. Nakao, H. Kim, T.K. Cacho, C. Masuda, T. Tokunaga, M. Wadati, H. Okazaki, K. Shin, S. Kamihara, Y. Yamashita, Minoru Kondo, Takeshi Institute for Solid State Physics University of Tokyo Kashiwa Chiba Japan Department of Physics University of Tokyo Tokyo Japan Department of Applied Physics and Phisico-Informatics Keio University Yokohama Japan Department of Applied Physics National Defense Academy of Japan Yokosuka Japan Division of Materials Physics Graduate School of Engineering Science Osaka University Toyonaka Japan Research Center for Computational Design of Advanced Functional Materials National Institute of Advanced Industrial Science and Technology Tsukuba Japan Research and Services Division of Materials Data and Integrated System National Institute for Materials Science Tsukuba Japan RIKEN Center for Emergent Matter Science Wako Japan PRESTO Japan Science and Technology Agency Kawaguchi Japan Condensed Matter Research Center and Photon Factory Institute of Materials Structure Science High Energy Accelerator Research Organization Tsukuba Japan Diamond Light Source Harwell Campus Didcot United Kingdom Graduate School of Material Science University of Hyogo Hyogo Japan TheUniversity of Tokyo Kashiwa Chiba277-8581 Japan Center for Spintronics Research Network Keio University Yokohama Japan

Multi-layered materials provide fascinating platforms to realize various functional properties, possibly leading to future electronic devices controlled by external fields. In particular, layered magnets coupled with conducting layers have been extensively studied recently for possible control of their transport properties via the spin structure. Successful control of quantum-transport properties in the materials with antiferromagnetic (AFM) layers, so-called natural spin-valve structure, has been reported for the Dirac Fermion and topological/axion materials [1-11]. However, a bulk crystal in which magnetic and superconducting layers are alternately stacked has not been realized until now, and the search for functional properties in it is an interesting yet unexplored field in material science. Here, we discover superconductivity providing such an ideal platform in EuSn2As2 with the van der Waals stacking of magnetic Eu layers and superconducting Sn-As layers, and present the first demonstration of a natural spin-valve effect on the superconducting current. Below the superconducting transition temperature (Tc), the electrical resistivity becomes zero in the in-plane direction. In contrast, it, surprisingly, remains finite down to the lowest temperature in the out-of-plane direction, mostly due to the structure of intrinsic magnetic Josephson junctions in EuSn2As2. The magnetic order of the Eu layers (or natural spin-valve) is observed to be extremely soft, allowing one to easy control of the out-of-plane to in-plane resistivities ratio from 1 to ∞ by weak external magnetic fields. The concept of multi-functional materials with stacked magnetic-superconducting layers will open a new pathway to develop novel spintronic devices with magnetically controllable superconductivity. Copyright © 2020, The Authors. All rights reserved.

关键词： Europium compounds

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The evolutionary history of 2,658 cancers (vol 578, pg 122, 2020)

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NATURE 2023年第7948期614卷 E42-E42页

作者： Gerstung, Moritz Jolly, Clemency Leshchiner, Ignaty Dentro, Stefan C. Gonzalez, Santiago Rosebrock, Daniel Mitchell, Thomas J. Rubanova, Yulia Anur, Pavana Yu, Kaixian Tarabichi, Maxime Deshwar, Amit Wintersinger, Jeff Kleinheinz, Kortine Vazquez-Garcia, Ignacio Haase, Kerstin Jerman, Lara Sengupta, Subhajit Macintyre, Geoff Malikic, Salem Donmez, Nilgun Livitz, Dimitri G. Cmero, Marek Demeulemeester, Jonas Schumacher, Steven Fan, Yu Yao, Xiaotong Lee, Juhee Schlesner, Matthias Boutros, Paul C. Bowtell, David D. Zhu, Hongtu Getz, Gad Imielinski, Marcin Beroukhim, Rameen Sahinalp, S. Cenk Ji, Yuan Peifer, Martin Markowetz, Florian Mustonen, Ville Yuan, Ke Wang, Wenyi Morris, Quaid D. Spellman, Paul T. Wedge, David C. Van Loo, Peter European Molecular Biology Laboratory European Bioinformatics Institute (EMBL-EBI) Cambridge UK European Molecular Biology Laboratory Genome Biology Unit Heidelberg Germany Wellcome Sanger Institute Cambridge UK Genome Biology Unit European Molecular Biology Laboratory (EMBL) Heidelberg Germany University of Ljubljana Ljubljana Slovenia The Francis Crick Institute London UK Big Data Institute University of Oxford Oxford UK Wellcome Sanger Institute Wellcome Genome Campus Hinxton UK Big Data Institute Li Ka Shing Centre University of Oxford Oxford UK University of Cambridge Cambridge UK Cambridge University Hospitals NHS Foundation Trust Cambridge UK Department of Applied Mathematics and Theoretical Physics Centre for Mathematical Sciences University of Cambridge Cambridge UK Department of Epidemiology and Biostatistics Memorial Sloan Kettering Cancer Center New York NY USA Department of Statistics Columbia University New York NY USA Department of Haematology University of Cambridge Cambridge UK University of Leuven Leuven Belgium Broad Institute of MIT and Harvard Cambridge MA USA Center for Cancer Research Massachusetts General Hospital Charlestown MA USA Department of Pathology Massachusetts General Hospital Boston MA USA Harvard Medical School Boston MA USA Center for Cancer Research Massachusetts General Hospital Boston MA USA Dana-Farber Cancer Institute Boston MA USA Department of Medical Oncology Dana-Farber Cancer Institute Boston MA USA Department of Cancer Biology Dana-Farber Cancer Institute Boston MA USA Oxford NIHR Biomedical Research Centre Oxford UK Oxford NIHR Biomedical Research Centre University of Oxford Oxford UK University of Toronto Toronto Ontario Canada Vector Institute Toronto Ontario Canada Vector Institute Toronto ON Canada Department of Computer Science University of Toronto Toronto ON Canada Ontario Institute for Cancer Research Toronto Ontario Canada University of California Los Angeles

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Correction: Machine learning-based prediction of COVID-19 mortality using immunological and metabolic biomarkers

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BMC Digital Health 2023年第1期1卷 1-1页

作者： Thomas Wetere Tulu Ching Long Chan Chun Hei Wu Kei Hang Katie Chan Tsz Kin Wan Peter Yat Ming Woo Cee Zhung Steven Tseng Asmir Vodencarevic Cristina Menni Department of Biomedical Sciences City University of Hong Kong Hong Kong SAR China Computational Data Science Program Addis Ababa University Addis Ababa Ethiopia Department of Electrical Engineering City University of Hong Kong Hong Kong SAR China Department of Epidemiology and Center for Global Cardiometabolic Health School of Public Health Brown University Providence RI USA Department of Neurosurgery Kwong Wah Hospital Hong Kong SAR China Department of Medicine and Geriatrics Kwong Wah Hospital Hong Kong SAR China Innovative Medicines Novartis Pharma GmbH 90429 Nuremberg Germany Department of Twin Research King’s College London London UK

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A "Black Hole Star" Reveals the Remarkable Gas-Enshrouded Hearts of the Little Red Dots

arXiv

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arXiv 2025年

作者： Naidu, Rohan P. Matthee, Jorryt Katz, Harley de Graaff, Anna Oesch, Pascal Smith, Aaron Greene, Jenny E. Brammer, Gabriel Weibel, Andrea Hviding, Raphael Chisholm, John Labbé, Ivo Simcoe, Robert A. Witten, Callum Atek, Hakim Baggen, Josephine F.W. Belli, Sirio Bezanson, Rachel Boogaard, Leindert A. Bose, Sownak Covelo-Paz, Alba Dayal, Pratika Fudamoto, Yoshinobu Furtak, Lukas J. Giovinazzo, Emma Goulding, Andy Gronke, Max Heintz, Kasper E. Hirschmann, Michaela Illingworth, Garth Inoue, Akio K. Johnson, Benjamin D. Leja, Joel Leonova, Ecaterina McConachie, Ian Maseda, Michael V. Natarajan, Priyamvada Nelson, Erica Setton, David J. Shivaei, Irene Sobral, David Stefanon, Mauro Tacchella, Sandro Toft, Sune Torralba, Alberto van Dokkum, Pieter van der Wel, Arjen Volonteri, Marta Walter, Fabian Wang, Bingjie Watson, Darach MIT Kavli Institute for Astrophysics and Space Research 70 Vassar Street CambridgeMA02139 United States Am Campus 1 Klosterneuburg3400 Austria Department of Astronomy & Astrophysics University of Chicago 5640 S Ellis Avenue ChicagoIL60637 United States Max-Planck-Institut f"ur Astronomie K"onigstuhl 17 HeidelbergD-69117 Germany Department of Astronomy University of Geneva Chemin Pegasi 51 Versoix1290 Switzerland Copenhagen Denmark Niels Bohr Institute University of Copenhagen Jagtvej 128 Copenhagen Denmark Department of Physics The University of Texas at Dallas RichardsonTX75080 United States Department of Astrophysical Sciences Princeton University PrincetonNJ08544 United States Department of Astronomy The University of Texas at Austin AustinTX78712 United States Centre for Astrophysics and Supercomputing Swinburne University of Technology MelbourneVIC3122 Australia Institut d’Astrophysique de Paris CNRS Sorbonne Universit’e 98bis Boulevard Arago Paris75014 France Department of Astronomy Yale University New HavenCT06511 United States Dipartimento di Fisica e Astronomia Università di Bologna Bologna Italy Department of Physics and Astronomy PITT PACC University of Pittsburgh PittsburghPA15260 United States Leiden Observatory Leiden University PO Box 9513 Leiden2300 RA Netherlands Institute for Computational Cosmology Department of Physics Durham University South Road DurhamDH1 3LE United Kingdom Kapteyn Astronomical Institute University of Groningen P.O. Box 800 Groningen9700 AV Netherlands Center for Frontier Science Chiba University 1-33 Yayoi-cho Inage-ku Chiba263-8522 Japan Department of Physics Ben-Gurion University of the Negev P.O. Box 653 Be’er-Sheva84105 Israel Max Planck Institute for Astrophysics Karl-Schwarzschild-Str. 1 Garching85748 Germany Institute of Physics Lab for Galaxy Evolution and Spectral Modelling EPFL Observatory of Sauverny Chemin Pegasi 51 Versoix1290 Switzerland Department of

The physical processes that led to the formation of billion solar mass black holes within the first 700 million years of cosmic time remain a puzzle1–3. Several theoretical scenarios have been proposed to seed and rapidly grow black holes4–7, but direct observations of these mechanisms remain elusive. Here we present a source 660 million years after the Big Bang that displays singular properties: among the largest Hydrogen Balmer breaks reported at any redshift, broad multi-peaked Hβ emission, and Balmer line absorption in multiple transitions. We model this source as a "black hole star" (BH*) where the Balmer break and absorption features are a result of extremely dense, turbulent gas forming a dust-free "atmosphere" around a supermassive black hole8, 9. This source may provide evidence of an early black hole embedded in dense gas – a theoretical configuration proposed to rapidly grow black holes via super-Eddington accretion10–14. Radiation from the BH* appears to dominate almost all observed light, leaving limited room for contribution from its host galaxy. We demonstrate that the recently discovered "Little Red Dots" (LRDs)15–19 with perplexing spectral energy distributions20–26 can be explained as BH*s embedded in relatively brighter host galaxies. This source provides evidence that SMBH masses in the LRDs may be over-estimated by orders of magnitude – the BH* is effectively dust-free contrary to the steep dust corrections applied while modeling LRDs9, 16, 27, 28, and the physics that gives rise to the complex line shapes and luminosities may deviate from assumptions underlying standard scaling relations. © 2025, CC BY.

关键词： Cosmology

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NGTS-30 b/TOI-4862 b: An 1 Gyr old 98-day transiting warm Jupiter

arXiv

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arXiv 2024年

作者： Battley, M.P. Collins, K.A. Ulmer-Moll, S. Quinn, S.N. Lendl, M. Gill, S. Brahm, R. Hobson, M.J. Osborn, H.P. Deline, A. Faria, J.P. Claringbold, A.B. Chakraborty, H. Stassun, K.G. Hellier, C. Alves, D.R. Ziegler, C. Anderson, D.R. Apergis, I. Armstrong, D.J. Bayliss, D. Beletsky, Y. Bieryla, A. Bouchy, F. Burleigh, M.R. Butler, R.P. Casewell, S.L. Christiansen, J.L. Crane, J.D. Dalba, P.A. Daylan, T. Figueira, P. Gillen, E. Goad, M.R. Günther, M.N. Henderson, B.A. Henning, T. Jenkins, J.S. Jordán, A. Kanodia, S. Kendall, A. Kunimoto, M. Latham, D.W. Levine, A.M. McCormac, J. Moyano, M. Osborn, A. Osip, D. Pritchard, T.A. Psaridi, A. Rice, M. Rodriguez, J.E. Saha, S. Seager, S. Shectman, S.A. Smith, A.M.S. Teske, J.K. Ting, E.B. Udry, S. Vines, J.I. Watson, C.A. West, R.G. Wheatley, P.J. Winn, J.N. Yee, S.W. Zhao, Y. Observatoire Astronomique de l’Université de Genève Chemin Pegasi 51 VersoixCH-1290 Switzerland Center for Astrophysics Harvard & Smithsonian 60 Garden Street CambridgeMA02138 United States Physikalisches Institut University of Bern Gesellsschaftstrasse 6 Bern3012 Switzerland Department of Physics University of Warwick Gibbet Hill Road CoventryCV4 7AL United Kingdom Centre for Exoplanets and Habitability University of Warwick Gibbet Hill Road CoventryCV4 7AL United Kingdom Facultad de Ingeniería y Ciencias Universidad Adolfo Ibáñez Av. Diagonal las Torres 2640 Peñalolén Santiago Chile Millennium Institute for Astrophysics Chile Data Observatory Foundation Chile Department of Physics and Astronomy Vanderbilt University NashvilleTN37235 United States Astrophysics Group Keele University StaffordshireST5 5BG United Kingdom Departamento de Astronomía Universidad de Chile Casilla 36-D Santiago Chile Department of Physics Engineering and Astronomy Stephen F. Austin State University 1936 North St NacogdochesTX75962 United States Instituto de Astronomía Universidad Católica del Norte Angamos 0610 Antofagasta1270709 Chile Las Campanas Observatory Carnegie Institution for Science Colina el Pino Casilla La Serena601 Chile School of Physics and Astronomy University of Leicester LeicesterLE1 7RH United Kingdom Earth and Planets Laboratory Carnegie Institution for Science 5241 Broad Branch Road NW WashingtonDC20015 United States Caltech IPAC-NASA Exoplanet Science Institute 770 S. Wilson Avenue PasadenaCA91106 United States The Observatories of the Carnegie Institution for Science 813 Santa Barbara St. PasadenaCA91101 United States Department of Astronomy and Astrophysics University of California Santa CruzCA95064 United States Department of Physics McDonnell Center for the Space Sciences Washington University St. LouisMO63130 United States Astronomy Unit Queen Mary University of London Mile End Road LondonE1 4NS United Kingdom

Context. Long-period transiting exoplanets bridge the gap between the bulk of transit- and Doppler-based exoplanet discoveries, providing key insights into the formation and evolution of planetary systems. The wider separation between these planets and their host stars results in the exoplanets typically experiencing less radiation from their host stars;hence, they should maintain more of their original atmospheres, which can be probed during transit via transmission spectroscopy. Although the known population of long-period transiting exoplanets is relatively sparse, surveys performed by the Transiting Exoplanet Survey Satellite (TESS) and the Next Generation Transit Survey (NGTS) are now discovering new exoplanets to fill in this crucial region of the exoplanetary parameter space. Aims. This study aims to characterise a new long-period transiting exoplanet by following up on a single-transit candidate found in the TESS mission. Methods. The TOI-4862 system was monitored using a combination of photometric instruments (TESS, NGTS, and EulerCam) and spectroscopic instruments (CORALIE, FEROS, HARPS, and PFS) in order to determine the period, radius, and mass of the long-period transiting exoplanet NGTS-30 b/TOI-4862 b. These observations were then fitted simultaneously to determine precise values for the properties and orbital parameters of the exoplanet, as well as the refined stellar parameters of the host star. Results. We present the discovery of a long-period (P = 98.29838±0.00010 day) Jupiter-sized (0.928±0.032 RJ;0.960±0.056 MJ) planet transiting a 1.1 Gyr old G-type star, one of the youngest warm Jupiters discovered to date. NGTS-30 b/TOI-4862 b has a moderate eccentricity (0.294+−00014010), meaning that its equilibrium temperature can be expected to vary from 274+−3046 K to 500+−5584 K over the course of its orbit. Through interior modelling, NGTS-30 b/TOI-4862 b was found to have a heavy element mass fraction of 0.23+−000506 and a heavy element enrichment (Z

关键词： Satellites

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RadioAstron Space VLBI Imaging of the jet in M87: I. Detection of high brightness temperature at 22 GHz

arXiv

引用

arXiv 2023年

作者： Kim, Jae-Young Savolainen, Tuomas Voitsik, Petr Kravchenko, Evgeniya V. Lisakov, Mikhail M. Kovalev, Yuri Y. Müller, Hendrik Lobanov, Andrei P. Sokolovsky, Kirill V. Bruni, Gabriele Edwards, Philip G. Reynolds, Cormac Bach, Uwe Gurvits, Leonid I. Krichbaum, Thomas P. Hada, Kazuhiro Giroletti, Marcello Orienti, Monica Anderson, James M. Lee, Sang-Sung Sohn, Bong Won Zensus, J. Anton Department of Astronomy and Atmospheric Sciences Kyungpook National University Daegu702-701 Korea Republic of Max-Planck-Institut für Radioastronomie Auf dem Hügel 69 BonnD-53121 Germany Aalto University Department of Electronics and Nanoengineering PL 15500 AaltoFI-00076 Finland Aalto University Metsähovi Radio Observatory Metsähovintie 114 KylmäläFI-02540 Finland Lebedev Physical Institute The Russian Academy of Sciences Leninsky prospekt 53 Moscow119991 Russia Moscow Institute of Physics and Technology Dolgoprudny Institutsky per. 9 Moscow141700 Russia Department of Astronomy University of Illinois at Urbana-Champaign 1002 W. Green Street UrbanaIL61801 United States Center for Data Intensive and Time Domain Astronomy Department of Physics and Astronomy Michigan State University 567 Wilson Rd East LansingMI48824 United States Sternberg Astronomical Institute Moscow State University Universitetskij pr. 13 Moscow119992 Russia INAF-Istituto di Astrofisica e Planetologia Spaziali via Fosso del Cavaliere 100 RomaI-00133 Italy CSIRO Astronomy and Space Science PO Box 76 EppingNSW1710 Australia CSIRO Astronomy and Space Science PO Box 1130 BentleyWA6102 Australia Oude Hoogeveensedijk 4 DwingelooNL-7991 PD Netherlands Faculty of Aerospace Engineering Delft University of Technology Kluyverweg 1 DelftNL-2629 HS Netherlands Mizusawa VLBI Observatory National Astronomical Observatory of Japan 2-12 Hoshigaoka Mizusawa Iwate Oshu023-0861 Japan 2-21-1 Osawa Mitaka Tokyo181-8588 Japan via Gobetti 101 Bologna40129 Italy Leibniz Institute for Agricultural Engineering and Bioeconomy Max-Eyth-Allee 100 Potsdam-BornimD-14469 Germany Korea Astronomy and Space Science Institute 776 Daedeok-daero Yuseong-gu Daejeon34055 Korea Republic of

We present results from the first 22 GHz space very-long-baseline interferometric (VLBI) imaging observations of M87 by RadioAstron. As a part of the Nearby AGN Key science Program, the source was observed in Feb 2014 at 22 GHz with 21 ground stations, reaching projected (u, v)-spacings up to ∼ 11 Gλ. The imaging experiment was complemented by snapshot RadioAstron data of M87 obtained during 2013–2016 from the AGN Survey Key science Program. Their longest baselines extend up to ∼ 25 Gλ. For all these measurements, fringes are detected only up to ∼2.8 Earth Diameter or ∼3 Gλ baseline lengths, resulting in a new image with angular resolution of ∼ 150 µas or ∼ 20 Schwarzschild radii spatial resolution. The new image not only shows edge-brightened jet and counterjet structures down to submilliarcsecond scales but also clearly resolves the VLBI core region. While the overall size of the core is comparable to those reported in the literature, the ground-space fringe detection and slightly super-resolved RadioAstron image suggest the presence of substructures in the nucleus, whose minimum brightness temperature exceeds TB,min ∼ 1012 K. It is challenging to explain the origin of this record-high TB,min value for M87 by pure Doppler boosting effect with a simple conical jet geometry and known jet speed. Therefore, this can be evidence for more extreme Doppler boosting due to a blazar-like small jet viewing angle or highly efficient particle acceleration processes occurring already at the base of the outflow. © 2023, CC BY.

关键词： Luminance

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Ab Initio Calculation on Spectroscopic Properties and Radiative Lifetimes of Low-Lying Excited States of NaK

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Chinese Journal of Chemical Physics 2019年第6期32卷 667-673,I0002页

作者： Shi-yang Zhang Feng Xie Feng-dong Jia Xiao-kang Li Ru-quan Wang Rui Li Yong Wu Zhi-ping Zhong School of Physics University of Chinese Academy of SciencesBeijing 100049China Institute of Nuclear and New Energy Technology Collaborative Innovation Center of Advanced Nuclear Energy TechnologyKey Laboratory of Advanced Reactor Engineering and Safety of Ministry of EducationTsinghua UniversityBeijing 100084China Institute of Physics Chinese Academy of SciencesBeijing 100190China Data Center for High Energy Density Physics Institute of Applied Physics and Computational MathematicsBeijing 100088China Department of Physics College of ScienceQiqihar UniversityQiqihar 161006China CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of SciencesBeijing 100190China

We performed high-level ab initio calculations on electronic structure of Na K. The potential energy curves (PECs) of 10 Λ-S states correlated with the three lowest dissociation limits have been calculated. On the basis of the calculated PECs, the spectroscopic constants of the boundΛ-S states are obtained, which are in good agreement with experimental results. The maximum vibrational quantum numbers of the singlet ground state X^1Σ^+ and the triplet ground state a^3Σ^+ have been analyzed with the semiclassical scattering theory. Transition properties including transition dipole moments, Franck-Condon factors, and radiative lifetimes have been investigated. The research results indicate that such calculations can provide fairly reliable estimation of parameters for the ultracold alkali diatomic molecular experiment.

关键词： Ultracold dipolar molecule Transition dipole moment Spectroscopic constants Potential curves

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Electronic Impurity Doping of a 2D Hybrid Lead Iodide Perovskite by Bi and Sn

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PRX Energy 2023年第2期2卷 023010-023010页

作者： Haipeng Lu Gabrielle Koknat Yi Yao Ji Hao Xixi Qin Chuanxiao Xiao Ruyi Song Florian Merz Markus Rampp Sebastian Kokott Christian Carbogno Tianyang Li Glenn Teeter Matthias Scheffler Joseph J. Berry David B. Mitzi Jeffrey L. Blackburn Volker Blum Matthew C. Beard Material Chemical and Computational Science Directorate National Renewable Energy Laboratory Golden Colorado 80401 USA Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China Thomas Lord Department of Mechanical Engineering and Material Science Duke University Durham North Carolina 27708 USA Department of Chemistry Duke University Durham North Carolina 27708 USA Lenovo HPC Innovation Center Meitnerstr. 9 D-70563 Stuttgart Germany Max Planck Computing and Data Facility Giessenbachstrasse 2 D-85748 Garching Germany The NOMAD Laboratory at the FHI of the Max-Planck-Gesellschaft and IRIS-Adlershof of the Humboldt-Universität zu Berlin 14195 Berlin Germany Renewable and Sustainable Energy Institute University of Colorado Boulder Boulder Colorado 80309 USA Department of Physics University of Colorado Boulder Boulder Colorado 80309 USA

Control over conductivity and carrier type (electrons and holes) defines semiconductors. A primary approach to target carrier concentrations involves introducing a small population of aliovalent impurity dopant atoms. In a combined synthetic and computational study, we assess impurity doping by introducing Bi and Sn into the prototype 2D Ruddlesden-Popper hybrid perovskite phenylethylammonium lead iodide (PEA2PbI4). Experimentally, we demonstrate that Bi and Sn can achieve n- and p-type doping, respectively, but the doping efficiency is low. Simulations show that Bi introduces a deep defect energy level (∼0.5 eV below the conduction band minimum) that contributes to the low doping efficiency, but, to reproduce the low doping efficiency observed experimentally, an acceptor level must also be present that limits n-type doping. Experiments find that Sn achieves p-dopant behavior and simulations suggest that this occurs through the additional oxidation of Sn defects. We also study how substitutional Bi incorporation can be controlled by tuning the electrochemical environment during synthesis. First-principles impurity doping simulations can be challenging; typical dopant concentrations constitute less than 0.01% of the atoms, necessitating large supercells, while a high level of theory is needed to capture the electronic levels. We demonstrate simulations of complex defect-containing unit cells that include up to 3383 atoms, employing spin-orbit coupled hybrid density functional theory. While p- and n-type behavior can be achieved with Sn and Bi, simulations and experiments provide concrete directions where future efforts must be focused to achieve higher doping efficiency.

关键词： Energy materials Solar energy

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Patterns of somatic structural variation in human cancer genomes (vol 578, pg 112, 2020)

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NATURE 2023年第7948期614卷 E38-E38页

作者： Li, Yilong Roberts, Nicola D. Wala, Jeremiah A. Shapira, Ofer Schumacher, Steven E. Kumar, Kiran Khurana, Ekta Waszak, Sebastian Korbel, Jan O. Haber, James E. Imielinski, Marcin Weischenfeldt, Joachim Beroukhim, Rameen Campbell, Peter J. Cancer Genome Project Wellcome Trust Sanger Institute Hinxton UK Totient Inc Cambridge MA USA Wellcome Sanger Institute Wellcome Genome Campus Hinxton UK Department of Haematology University of Cambridge Cambridge UK Cambridge University Hospitals NHS Foundation Trust Cambridge UK Korea Advanced Institute of Science and Technology Daejeon South Korea Department of Zoology Genetics and Physical Anthropology University of Santiago de Compostela Santiago de Compostela Spain Centre for Research in Molecular Medicine and Chronic Diseases (CIMUS) University of Santiago de Compostela Santiago de Compostela Spain The Biomedical Research Centre (CINBIO) University of Vigo Vigo Spain Centre for Research in Molecular Medicine and Chronic Diseases (CiMUS) Universidade de Santiago de Compostela Santiago de Compostela Spain Department of Zoology Genetics and Physical Anthropology (CiMUS) Universidade de Santiago de Compostela Santiago de Compostela Spain The Biomedical Research Centre (CINBIO) Universidade de Vigo Vigo Spain The Broad Institute of Harvard and MIT Cambridge MA USA Bioinformatics and Integrative Genomics Harvard University Cambridge MA USA Department of Cancer Biology Dana-Farber Cancer Institute Boston MA USA Broad Institute of MIT and Harvard Cambridge MA USA Department of Medical Oncology Dana-Farber Cancer Institute Boston MA USA Harvard Medical School Boston MA USA Massachusetts General Hospital Center for Cancer Research Charlestown MA USA Dana-Farber Cancer Institute Boston MA USA Department of Biostatistics and Computational Biology Dana-Farber Cancer Institute and Harvard Medical School Boston MA USA Weill Cornell Medical College New York NY USA Department of Physiology and Biophysics Weill Cornell Medicine New York NY USA Institute for Computational Biomedicine Weill Cornell Medicine New York NY USA Controlled Department and Institution New York NY USA Englander Institute for Precision Medicine Weill Cornell Medicine Ne

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