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Oxygen Electromigration and Energy Band Reconstruction Induced by Electrolyte Field Effect at Oxide Interfaces

Physical Review Letters 2018年第14期121卷 146802-146802页

作者： S. W. Zeng X. M. Yin T. S. Herng K. Han Z. Huang L. C. Zhang C. J. Li W. X. Zhou D. Y. Wan P. Yang J. Ding A. T. S. Wee J. M. D. Coey T. Venkatesan A. Rusydi A. Ariando NUSNNI-NanoCore National University of Singapore Singapore 117411 Singapore Department of Physics National University of Singapore Singapore 117542 Singapore Singapore Synchrotron Light Source (SSLS) National University of Singapore 5 Research Link Singapore 117603 Singapore SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Optoelectronic Engineering Shenzhen University Shenzhen 518060 China Department of Materials Science and Engineering National University of Singapore Singapore 117576 Singapore Centre for Advanced 2D Materials and Graphene Research National University of Singapore Singapore 117546 Singapore School of Physics and CRANN Trinity College Dublin 2 Ireland Department of Electrical and Computer Engineering National University of Singapore Singapore 117576 Singapore National University of Singapore Graduate School for Integrative Sciences and Engineering (NGS) 28 Medical Drive Singapore 117456 Singapore

Electrolyte gating is a powerful means for tuning the carrier density and exploring the resultant modulation of novel properties on solid surfaces. However, the mechanism, especially its effect on the oxygen migration and electrostatic charging at the oxide heterostructures, is still unclear. Here we explore the electrolyte gating on oxygen-deficient interfaces between SrTiO3 (STO) crystals and LaAlO3 (LAO) overlayer through the measurements of electrical transport, x-ray absorption spectroscopy, and photoluminescence spectra. We found that oxygen vacancies (Ovac) were filled selectively and irreversibly after gating due to oxygen electromigration at the amorphous LAO/STO interface, resulting in a reconstruction of its interfacial band structure. Because of the filling of Ovac, the amorphous interface also showed an enhanced electron mobility and quantum oscillation of the conductance. Further, the filling effect could be controlled by the degree of the crystallinity of the LAO overlayer by varying the growth temperatures. Our results reveal the different effects induced by electrolyte gating, providing further clues to understand the mechanism of electrolyte gating on buried interfaces and also opening a new avenue for constructing high-mobility oxide interfaces.

关键词： Electronic structure Phase transitions Surface & interfacial phenomena Transport phenomena Oxides Strongly correlated systems Thin films Two-dimensional electron gas Photoluminescence Transport techniques X-ray absorption spectroscopy

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2D Transition Metal Dichalcogenide: Unraveling High-Yield Phase-Transition Dynamics in Transition Metal Dichalcogenides on Metallic Substrates (Adv. Sci. 7/2019)

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Advanced science 2019年第7期6卷 1970042-1970042页

作者： Xinmao Yin Chi Sin Tang Di Wu Weilong Kong Changjian Li Qixing Wang Liang Cao Ming Yang Yung-Huang Chang Dianyu Qi Fangping Ouyang Stephen J. Pennycook Yuan Ping Feng Mark B. H. Breese Shi Jie Wang Wenjing Zhang Andrivo Rusydi Andrew T. S. Wee Department of Physics Faculty of Science National University of Singapore Singapore 117542 Singapore Singapore Synchrotron Light Source (SSLS) National University of Singapore Singapore 117603 Singapore NUS Graduate School for Integrative Sciences and Engineering National University of Singapore Singapore 117456 Singapore International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology Shenzhen University Shenzhen 518060 China Hunan Key Laboratory of Super-microstructure and Ultrafast Process School of Physics and Electronics Central South University No. 932 South Lushan Road Changsha Hunan Province 410083 China Department of Materials Science and Engineering National University of Singapore 9 Engineering Drive 1 Singapore 117575 Singapore Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field Laboratory of the Chinese Academy of Sciences Hefei 230031 China Institute of Materials Research and Engineering A∗STAR (Agency for Science Technology and Research) 2 Fusionopolis Way Singapore 138634 Singapore Bachelor Program in Interdisciplinary Studies National Yunlin University of Science and Technology Yunlin 640 Taiwan

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Gene Therapy: Encapsulation, Visualization and Expression of Genes with Biomimetically Mineralized Zeolitic Imidazolate Framework-8 (ZIF-8) (Small 36/2019)

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Small 2019年第36期15卷

作者： Arpita Poddar José J. Conesa Kang Liang Sudip Dhakal Philipp Reineck Gary Bryant Eva Pereiro Raffaele Ricco Heinz Amenitsch Christian Doonan Xavier Mulet Cara M. Doherty Paolo Falcaro Ravi Shukla Ian Potter NanoBiosensing Facility NanoBiotechnology Research Laboratory (NBRL) School of Science RMIT University Melbourne Victoria 3001 Australia CSIRO Manufacturing Clayton Victoria 3168 Australia ALBA Synchrotron Light Source MISTRAL Beamline – Experiments division. Cerdanyola del Vallès Barcelona 08290 Spain School of Chemical Engineering and Graduate School of Biomedical Engineering University of New South Wales Library Road Kensington Sydney NSW 2052 Australia ARC Centre of Excellence for Nanoscale BioPhotonics School of Science RMIT University Melbourne Victoria 3001 Australia Centre for Molecular and Nanoscale Physics School of Science RMIT University Melbourne Victoria 3001 Australia Institute of Physical and Theoretical Chemistry Graz University of Technology 8010 Graz Austria Institute of Inorganic Chemistry Graz University of Technology 8010 Graz Austria Department of Chemistry and the Centre for Advanced Nanomaterials The University of Adelaide Adelaide South Australia 5005 Australia

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Photoproduction of Λ and Σ0 hyperons off protons with linearly polarized photons at Eγ=1.5–3.0 GeV

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Physical Review C 2018年第1期97卷 015208-015208页

作者： S. H. Shiu H. Kohri W. C. Chang D. S. Ahn J. K. Ahn J. Y. Chen S. Daté H. Ejiri H. Fujimura M. Fujiwara S. Fukui W. Gohn K. Hicks T. Hotta S. H. Hwang K. Imai T. Ishikawa K. Joo Y. Kato Y. Kon H. S. Lee Y. Maeda T. Mibe M. Miyabe K. Mizutani Y. Morino N. Muramatsu T. Nakano Y. Nakatsugawa M. Niiyama H. Noumi Y. Ohashi T. Ohta M. Oka J. D. Parker C. Rangacharyulu S. Y. Ryu T. Sawada H. Shimizu Y. Sugaya M. Sumihama T. Tsunemi M. Uchida M. Ungaro M. Yosoi Institute of Physics Academia Sinica Taipei 11529 Taiwan Department of Physics National Central University Taoyuan City 32001 Taiwan Research Center for Nuclear Physics Osaka University Ibaraki Osaka 567-0047 Japan RIKEN Nishina Center 2-1 Hirosawa Wako Saitama 351-0198 Japan Department of Physics Korea University Seoul 02841 Republic of Korea Light Source Division National Synchrotron Radiation Research Center Hsinchu 30076 Taiwan Japan Synchrotron Radiation Research Institute Sayo Hyogo 679-5143 Japan Wakayama Medical College Wakayama 641-8509 Japan National Institutes for Quantum and Radiological Science and Technology Tokai Ibaraki 319-1195 Japan Department of Physics University of Connecticut Storrs Connecticut 06269-3046 USA Department of Physics and Astronomy Ohio University Athens Ohio 45701 USA Korea Research Institute of Standards and Science (KRISS) Daejeon 34113 Republic of Korea Advanced Science Research Center Japan Atomic Energy Agency Tokai Ibaraki 319-1195 Japan Research Center for Electron Photon Science Tohoku University Sendai Miyagi 982-0826 Japan Kobayashi-Maskawa Institute Nagoya University Nagoya Aichi 464-8602 Japan Rare Isotope Science Project Institute for Basic Science Daejeon 34047 Korea Proton Therapy Center Fukui Prefectural Hospital Fukui 910-8526 Japan High Energy Accelerator Organization (KEK) Tsukuba Ibaraki 305-0801 Japan Department of Physics Kyoto University Kyoto 606-8502 Japan Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Department of Radiology The University of Tokyo Hospital Tokyo 113-8655 Japan Neutron Science and Technology Center Comprehensive Research Organization for Science and Society (CROSS) Tokai Ibaraki 319-1106 Japan Department of Physics and Engineering Physics University of Saskatchewan Saskatoon SK S7N 5E2 Canada Physics Department University of Michigan Michigan 48109-1040 USA Department of Education Gifu University Gifu 501-1193 Japan Gr

We report the measurement of the γp→K+Λ and γp→K+Σ0 reactions at SPring-8. The differential cross sections and photon-beam asymmetries are measured at forward K+ production angles using linearly polarized tagged-photon beams in the range of Eγ=1.5–3.0 GeV. With increasing photon energy, the cross sections for both γp→K+Λ and γp→K+Σ0 reactions decrease slowly. Distinct narrow structures in the production cross section have not been found at Eγ=1.5–3.0 GeV. The forward peaking in the angular distributions of cross sections, a characteristic feature of t-channel exchange, is observed for the production of Λ in the whole observed energy range. A lack of similar feature for Σ0 production reflects a less dominant role of t-channel contribution in this channel. The photon-beam asymmetries remain positive for both reactions, suggesting the dominance of K* exchange in the t channel. These asymmetries increase gradually with the photon energy, and have a maximum value of +0.6 for both reactions. Comparison with theoretical predictions based on the Regge trajectory in the t channel and the contributions of nucleon resonances indicates the major role of t-channel contributions as well as non-negligible effects of nucleon resonances in accounting for the reaction mechanism of hyperon photoproduction in this photon energy regime.

关键词： Particle production Photonuclear reactions Polarization phenomena

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Effect of formation temperature on quality of gate dielectric on germanium substrate

Effect of formation temperature on quality of gate dielectri...

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International Symposium on Physical & Failure Analysis of Integrated Circuits

作者： Erh-Jye Wei Bing-Yue Tsui Pin-Jiun Wu Graduate Program for Science and Technology of Accelerator Light Source National Chiao Tung University Hsinchu Taiwan R.O.C. Department of Electronics Engineering and Institute of Electronics National Chiao Tung University Hsinchu Taiwan R.O.C. National Synchrotron Radiation Research Center (NSRRC) Hsinchu Taiwan R.O.C.

ISBN: (纸本)9781467382601

Germanium metal-insulator-semiconductor (MIS) structure with HfO 2 /Al 2 O 3 /GeO 2 gate stack have been demonstrated to exhibit good performance. In this work, the effect of formation temperature of the gate stack on the quality of the gate dielectric is investigated. It is found that the higher plasma oxidation temperature helps the GeO 2 formation and less interface states. But the higher deposition temperature of the ALD high-k films may degrade the interface and result in higher leakage current.

关键词： Failure analysis Integrated circuits Decision support systems

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Author Correction: Membrane protein megahertz crystallography at the European XFEL

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Nature communications 2020年第1期11卷 703页

作者： Chris Gisriel Jesse Coe Romain Letrun Oleksandr M Yefanov Cesar Luna-Chavez Natasha E Stander Stella Lisova Valerio Mariani Manuela Kuhn Steve Aplin Thomas D Grant Katerina Dörner Tokushi Sato Austin Echelmeier Jorvani Cruz Villarreal Mark S Hunter Max O Wiedorn Juraj Knoska Victoria Mazalova Shatabdi Roy-Chowdhury Jay-How Yang Alex Jones Richard Bean Johan Bielecki Yoonhee Kim Grant Mills Britta Weinhausen Jose D Meza Nasser Al-Qudami Saša Bajt Gerrit Brehm Sabine Botha Djelloul Boukhelef Sandor Brockhauser Barry D Bruce Matthew A Coleman Cyril Danilevski Erin Discianno Zachary Dobson Hans Fangohr Jose M Martin-Garcia Yaroslav Gevorkov Steffen Hauf Ahmad Hosseinizadeh Friederike Januschek Gihan K Ketawala Christopher Kupitz Luis Maia Maurizio Manetti Marc Messerschmidt Thomas Michelat Jyotirmoy Mondal Abbas Ourmazd Gianpietro Previtali Iosifina Sarrou Silvan Schön Peter Schwander Megan L Shelby Alessandro Silenzi Jolanta Sztuk-Dambietz Janusz Szuba Monica Turcato Thomas A White Krzysztof Wrona Chen Xu Mohamed H Abdellatif James D Zook John C H Spence Henry N Chapman Anton Barty Richard A Kirian Matthias Frank Alexandra Ros Marius Schmidt Raimund Fromme Adrian P Mancuso Petra Fromme Nadia A Zatsepin Biodesign Center for Applied Structural Discovery Arizona State University Tempe AZ 85287-5001 USA. School of Molecular Sciences Arizona State University Tempe AZ 85287-1604 USA. Department of Chemistry Yale University New Haven CT 06520 USA. European XFEL GmbH Holzkoppel 4 22869 Schenefeld Germany. Center for Free-Electron Laser Science Deutsches Elektronen-Synchrotron Notkestrasse 85 22607 Hamburg Germany. Department of Physics Arizona State University Tempe AZ 85287-1504 USA. Hauptman-Woodward Institute 700 Ellicott St Buffalo NY 14203-1102 USA. Department of Structural Biology Jacobs School of Medicine and Biomedical Sciences SUNY University at Buffalo 700 Ellicott St Buffalo NY 14203-1102 USA. Linac Coherent Light Source SLAC National Accelerator Laboratory Menlo Park 94025 CA USA. Department of Physics Universität Hamburg Luruper Chaussee 149 22761 Hamburg Germany. The Hamburg Centre for Ultrafast Imaging Universität Hamburg Luruper Chaussee 149 22761 Hamburg Germany. Deutsches Elektronen-Synchrotron Notkestrasse 85 22607 Hamburg Germany. Institute for X-Ray Physics University of Göttingen 37077 Göttingen Germany. Center Nanoscale Microscopy and Molecular Physiology of the Brain Göttingen Germany. Biological Research Centre Hungarian Academy of Sciences Temesvári krt. 62 Szeged 6726 Hungary. Department of Biochemistry & Cellular and Molecular Biology University of Tennessee at Knoxville Knoxville TN USA 37996. Program in Energy Science and Engineering University of Tennessee at Knoxville Knoxville TN USA 37996. Department of Microbiology University of Tennessee at Knoxville Knoxville TN USA 37996. Lawrence Livermore National Laboratory 7000 East Avenue Livermore CA 94550 USA. University of Southampton University Rd Southampton SO17 1BJ UK. Hamburg University of Technology Vision Systems E-2 Harburger Schloßstraße 20 21079 Hamburg Germany. Department of Physics University of Wisconsin-Milwaukee 3135 N. Maryla

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

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X-ray microscopy and spectroscopy insights of organic spin-valve

X-ray microscopy and spectroscopy insights of organic spin-v...

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International Conference on Magnetics (INTERMAG)

作者： D. Wei P. Cheng Graduate Program for Science and Technology of Synchrotron Light Source National Tsing Hua University Hsinchu Taiwan Research Division National Synchrotron Radiation Research Center Hsinchu Taiwan

One recent focus in spintronics is the observation of giant magnetoresistance (GMR) in organic spin-valve (OSV). Sandwiched by two ferromagnetic (FM) layers, organic semiconductor (OSC) was incorporated into the spin-valve structure to take advantage of its low spin-orbit interaction so that the coherence of spin-polarized carriers can be preserved over an extended time. The observation of GMR in OSV is thus a promising result suggesting spins have indeed travelled through OSC. However, until now, the magnetoresistance (MR) ratio given by OSV remains to be relatively low and highly sensitive to temperature. Obviously, our understanding on OSV is far from complete, and there are unidentified effects hindering the transport of spins in OSV. In this report, we present the experimental evidences suggesting that the absence of room temperature GMR in OSV may be related to the diffusion of metal clusters from metallic top electrode into OSC layer. Our findings also offer a plausible explanation on why inserting an oxide layer between OSC and FM electrode can improve the MR ratio of OSV.

关键词： Frequency modulation Electrodes Temperature sensors Metals Magnetic films Magnetic resonance imaging

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Optimizing the conditions for carbon nanotube growth on silicon wafers coated with nickel thin films

Optimizing the conditions for carbon nanotube growth on sili...

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International Microsystems, Packaging, Assembly and Circuits technology (IMPACT)

作者： Jhih-Syuan Teng Wei-Jie Chen Chuen-Horng Tsai Yao-Jane Hsu Pen-Cheng Wang Graduate Program for Science and Technology of Synchrotron Light Source National Tsing Hua University Hsinchu Taiwan National Synchrotron Radiation Research Center Hsinchu Taiwan Department of Engineering and System Science National Tsing Hua University Hsinchu Taiwan

In this work, the preparative conditions for optimizing growing carbon nanotube thin films on silicon wafers using an in-house chemical vapor deposition system was evaluated. We found that, when acetylene was used as the carbon source and nickel as the catalyst, the amount of carbon nanotubes grown on the silicon wafers was increased when the growth temperature was decreased from 800°C to 600°C. The carbon nanotubes were then characterized by Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and tunneling electron microscopy (TEM). The results show the obtained carbon nanotube thin films were mainly composed of multi-walled carbon nanotubes.

关键词： Carbon nanotubes Substrates Silicon Carbon Nickel Films

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Pressure tuning of bond-directional exchange interactions and magnetic frustration in the hyperhoneycomb iridate β−Li2IrO3

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Physical Review B 2017年第14期96卷 140402(R)-140402(R)页

作者： L. S. I. Veiga M. Etter K. Glazyrin F. Sun C. A. Escanhoela, Jr. G. Fabbris J. R. L. Mardegan P. S. Malavi Y. Deng P. P. Stavropoulos H.-Y. Kee W. G. Yang M. van Veenendaal J. S. Schilling T. Takayama H. Takagi D. Haskel Deutsches Elektronen-Synchrotron (DESY) D-22607 Hamburg Germany Advanced Photon Source Argonne National Laboratory Argonne Illinois 60439 USA London Centre for Nanotechnology and Department of Physics and Astronomy University College London Gower Street London WC1E 6BT United Kingdom Center for High Pressure Science & Technology Advanced Research (HPSTAR) Shanghai 201203 China Beijing National Laboratory for Condensed Matter Physics and Institute of Physics Chinese Academy of Sciences Beijing 100190 China Brazilian Synchrotron Light Laboratory (LNLS) Brazilian Center for Research in Energy and Materials (CNPEM) Campinas SP 13083-970 Brazil Department of Physics Washington University St. Louis Missouri 63130 USA Department of Condensed Matter Physics and Materials Science Brookhaven National Laboratory Upton New York 11973 USA Department of Physics and Center for Quantum Materials University of Toronto 60 St. George Street Toronto Ontario Canada M5S 1A7 Canadian Institute for Advanced Research/Quantum Materials Program Toronto Ontario Canada M5G 1Z8 High Pressure Synergetic Consortium (HPSynC) Geophysical Laboratory Carnegie Institution of Washington Argonne Illinois 60439 USA Department of Physics Northern Illinois University De Kalb Illinois 60115 USA Max Planck Institute for Solid State Research Heisenbergstrasse 1 D-70569 Stuttgart Germany Department of Physics and Department of Advanced Materials University of Tokyo 7-3-1 Hongo Tokyo 113-0033 Japan

We explore the response of Ir 5d orbitals to pressure in β−Li2IrO3, a hyperhoneycomb iridate in proximity to a Kitaev quantum spin-liquid (QSL) ground state. X-ray absorption spectroscopy reveals a reconstruction of the electronic ground state below 2 GPa, the same pressure range where x-ray magnetic circular dichroism shows an apparent collapse of magnetic order. The electronic reconstruction, which manifests a reduction in the effective spin-orbit interaction in 5d orbitals, pushes β−Li2IrO3 further away from the pure Jeff=1/2 limit. Although lattice symmetry is preserved across the electronic transition, x-ray diffraction shows a highly anisotropic compression of the hyperhoneycomb lattice which affects the balance of bond-directional Ir-Ir exchange interactions driven by spin-orbit coupling at Ir sites. An enhancement of symmetric anisotropic exchange over Kitaev and Heisenberg exchange interactions seen in theoretical calculations that use precisely this anisotropic Ir-Ir bond compression provides one possible route to the realization of a QSL state in this hyperhoneycomb iridate at high pressures.

关键词： Electronic structure Magnetic interactions Quantum spin liquid Spin-orbit coupling Ab initio calculations Pressure techniques X-ray absorption spectroscopy

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Photoproduction of Λ and Σ0 hyperons off protons with linearly polarized photons at Eγ = 1.5-3.0 GeV

arXiv

引用

arXiv 2017年

作者： Shiu, S.H. Kohri, H. Chang, W.C. Ahn, D.S. Ahn, J.K. Chen, J.Y. Daté, S. Ejiri, H. Fujimura, H. Fujiwara, M. Fukui, S. Gohn, W. Hicks, K. Hotta, T. Hwang, S.H. Imai, K. Ishikawa, T. Joo, K. Kato, Y. Kon, Y. Lee, H.S. Maeda, Y. Mibe, T. Miyabe, M. Mizutani, K. Morino, Y. Muramatsu, N. Nakano, T. Nakatsugawa, Y. Niiyama, M. Noumi, H. Ohashi, Y. Ohta, T. Oka, M. Parker, J.D. Rangacharyulu, C. Ryu, S.Y. Sawada, T. Shimizu, H. Sugaya, Y. Sumihama, M. Tsunemi, T. Uchida, M. Ungaro, M. Yosoi, M. Institute of Physics Academia Sinica Taipei11529 Taiwan Department of Physics National Central University Taoyuan City32001 Taiwan Research Center for Nuclear Physics Osaka University Ibaraki Osaka567-0047 Japan RIKEN Nishina Center 2-1 Hirosawa Wako Saitama351-0198 Japan Department of Physics Korea University Seoul02841 Korea Republic of Light Source Division National Synchrotron Radiation Research Center Hsinchu30076 Taiwan Japan Synchrotron Radiation Research Institute Sayo Hyogo679-5143 Japan Wakayama Medical College Wakayama641-8509 Japan National Institutes for Quantum and Radiological Science and Technology Tokai Ibaraki319-1195 Japan Department of Physics University of Connecticut StorrsCT06269-3046 United States Department of Physics and Astronomy Ohio University AthensOH45701 United States Daejeon34113 Korea Republic of Advanced Science Research Center Japan Atomic Energy Agency Tokai Ibaraki319-1195 Japan Research Center for Electron Photon Science Tohoku University Sendai Miyagi982-0826 Japan Kobayashi-Maskawa Institute Nagoya University Nagoya Aichi464-8602 Japan Rare Isotope Science Project Insitute for Basic Science Daejeon34047 Korea Republic of Proton Therapy Center Fukui Prefectural Hospital Fukui910-8526 Japan Tsukuba Ibaraki305-0801 Japan Department of Physics Kyoto University Kyoto606-8502 Japan Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China Department of Radiology University of Tokyo Hospital Tokyo113-8655 Japan Tokai Ibaraki319-1106 Japan Department of Physics and Engineering Physics University of Saskatchewan SaskatoonSKS7N 5E2 Canada Physics Department University of Michigan Michigan48109-1040 United States Department of Education Gifu University Gifu501-1193 Japan Graduate School of Science Kyoto University Kyoto606-8502 Japan Department of Physics Tokyo Institute of Technology Tokyo152-8551 Japan

We report the measurement of the γp → K+Λ and γp → K+Σ0 reactions at SPring-8. The differential cross sections and photon-beam asymmetries are measured at forward K+ production angles using linearly polarized tagged-photon beams in the range of Eγ = 1.5-3.0 GeV. With increasing photon energy, the cross sections for both γp → K+Λ and γp → K+Σ0 reactions decrease slowly. Distinct narrow structures in the production cross section have not been found at Eγ = 1.5-3.0 GeV. The forward peaking in the angular distributions of cross sections, a characteristic feature of t-channel exchange, is observed for the production of Λ in the whole observed energy range. A lack of similar feature for Σ0 production reflects a less dominant role of t-channel contribution in this channel. The photon-beam asymmetries remain positive for both reactions, suggesting the dominance of K∗ exchange in the t channel. These asymmetries increase gradually with the photon energy, and have a maximum value of +0.6 for both reactions. Comparison with theoretical predictions based on the Regge trajectory in the t channel and the contributions of nucleon resonances indicates the major role of t-channel contributions as well as non-negligible effects of nucleon resonances in accounting for the reaction mechanism of hyperon photoproduction in this photon energy regime. Copyright © 2017, The Authors. All rights reserved.

关键词： Photoelectrons

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