检索结果-内蒙古大学图书馆

Topological thermal Hall effect of magnons in magnetic skyrmion lattice

Physical Review Research 2022年第4期4卷 043085-043085页

作者： Masatoshi Akazawa Hyun-Yong Lee Hikaru Takeda Yuri Fujima Yusuke Tokunaga Taka-hisa Arima Jung Hoon Han Minoru Yamashita The Institute for Solid State Physics The University of Tokyo Kashiwa 277-8581 Japan Department of Applied Physics Graduate School Korea University Sejong 30019 South Korea Division of Display and Semiconductor Physics Korea University Sejong 30019 South Korea Interdisciplinary Program in E·ICT-Culture-Sports Convergence Korea University Sejong 30019 South Korea Department of Advanced Materials Science University of Tokyo Kashiwa 277-8561 Japan Department of Physics Sungkyunkwan University Suwon 16419 South Korea

Topological transport of fermions is governed by the Chern numbers of the energy bands lying below the Fermi energy. For bosons, e.g., phonons and magnons in a crystal, topological transport is dominated by the Chern number of the lowest energy band when the bandgap is comparable with the thermal energy. Here, we demonstrate the presence of topological transport by bosonic magnons in a lattice of magnetic skyrmions—topological defects formed by a vortexlike texture of spins. We find a distinct thermal Hall signal in the magnetic skyrmion phase of an insulating polar magnet GaV4Se8, identified as the topological thermal Hall effect of magnons governed by the Chern number of the lowest energy band of the magnons in a triangular lattice of magnetic skyrmions. Our findings lay a foundation for studying topological phenomena of other bosonic excitations via thermal Hall probe.

关键词： Magnons Skyrmions Thermal Hall effect

来源：评论

学校读者我要写书评

暂无评论

Cultivation of Chlorella sp. HS2 using wastewater from soy sauce factory

引用

Chemosphere 2023年 342卷 140162页

作者： Kim, Minsik Lee, Sang-Ah Yun, Jin-Ho Ko, So-Ra Cho, Dae-Hyun Kim, Hee Su Oh, Hee-Mock Kim, Hee-Sik Ahn, Chi-Yong Daejeon34141 Korea Republic of Dept. of Biological Engineering Inha University Incheon22212 Korea Republic of Faculty of Biotechnology College of Applied Life Sciences Jeju National University Jeju63243 Korea Republic of Interdisciplinary Graduate Program in Advance Convergence Technology and Science Jeju National University Jeju63243 Korea Republic of Department of Integrative Biotechnology Sungkyunkwan University Gyeonggi-do Suwon16419 Korea Republic of FarmHannong Chungcheongnam-do Nonsan33010 Korea Republic of

Incorporation of wastewater from industrial sectors into the design of microalgal biorefineries has significant potential for advancing the practical application of this emerging industry. This study tested various food industrial wastewaters to assess their suitability for microalgal cultivation. Among these wastewaters, defective soy sauce (DSS) and soy sauce wastewater (SWW) were chosen but DSS exhibited the highest nutrient content with 13,500 ppm total nitrogen and 3051 ppm total phosphorus. After diluting DSS by a factor of 50, small-scale cultivation of microalgae was conducted to optimize culture conditions. SWW exhibited optimal growth at 25–30 °C and 300–500 μE m−2 s−1, while DSS showed optimal growth at 30–35 °C. Based on a 100-mL lab-scale and 3-L outdoor cultivation with an extended cultivation period, DSS outperformed SWW, exhibiting higher final biomass productivity. Additionally, nutrient-concentrated nature of DSS is advantageous for transportation at an industrial scale, leading us to select it as the most promising feedstock for microalgal cultivation. With further optimization, DSS has the potential to serve as an effective microalgal cultivation feedstock for large-scale biomass production. © 2023 The Authors

关键词： Microalgae

来源：评论

学校读者我要写书评

暂无评论

Corrigendum to "Long-term outcome and predictors of vagus nerve stimulation for drug-resistant epilepsy: Real-world evidence from the Korean National Hospital Consortium" [Epilepsy Res. 210 (2025) 107511 0920-1211]

引用

Epilepsy research 2025年 211卷 107522页

作者： Seo-Young Lee Hyesung Lee Jae-Wook Cho Kyung Wook Kang Jong-Geun Seo Jon Soo Kim Joon-Won Kang Daeyoung Kim Young-Soo Kim Sun Ah Choi Jeonghoon Park Ji Hoon Phi Sang Ook Nam Won Seop Kim Jae-Moon Kim Ki Joong Kim Department of Neurology Kangwon National University Hospital Chuncheon Republic of Korea Interdisciplinary Graduate Program in Medical Bigdata Convergence Kangwon National University Chuncheon Republic of Korea. Department of Biohealth Regulatory Science Sungkyunkwan University Suwon Republic of Korea. Department of Neurology Pusan National University Yangsan Hospital Yangsan Republic of Korea Research Institute for Convergence of Biomedical Science and Technology Pusan National University School of Medicine Yangsan Republic of Korea. Department of Neurology Chonnam National University Hospital Kwangju Republic of Korea. Department of Neurology School of Medicine Kyungpook National University Daegu Republic of Korea. Department of Pediatrics Chungbuk National University Hospital Cheongju Republic of Korea. Department of Pediatrics Chungnam National University Hospital Daejeon Republic of Korea. Department of Neurology Chungnam National University Hospital Daejeon Republic of Korea. Department of Neurology Gyeongsang National University Hospital Jinju Republic of Korea. Department of Pediatrics Ewha Womans University College of Medicine Seoul Republic of Korea. Department of Neurology Kangwon National University Hospital Chuncheon Republic of Korea. Division of Pediatric Neurosurgery Seoul National University Children's Hospital Seoul National University College of Medicine Seoul Republic of Korea. Electronic address: phijh@snu.ac.kr. Department of Pediatrics Pusan National University School of Medicine Pusan Republic of Korea. Electronic address: neuroped@***. Department of Pediatrics Seoul National University College of Medicine Seoul Republic of Korea.

来源：评论

学校读者我要写书评

暂无评论

Variational tensor network operator

引用

Physical Review Research 2022年第4期4卷 043153-043153页

作者： Yu-Hsueh Chen Ke Hsu Wei-Lin Tu Hyun-Yong Lee Ying-Jer Kao Center for Theoretical Physics and Department of Physics National Taiwan University Taipei 10607 Taiwan Division of Display and Semiconductor Physics Korea University Sejong 30019 Korea Department of Applied Physics Graduate School Korea University Sejong 30019 Korea Interdisciplinary Program in E·ICT-Culture-Sports Convergence Korea University Sejong 30019 Korea Center for Quantum Science and Technology National Taiwan University Taipei 10607 Taiwan National Center for High-Performance Computing Hsinchu City 30076 Taiwan

We propose a simple and generic construction of the variational tensor network operators to study the quantum spin systems by the synergy of ideas from the imaginary-time evolution and the variational optimization of trial wave functions. By applying these operators to simple initial states, accurate variational ground-state wave functions with extremely few parameters can be obtained. Furthermore, the framework can be applied to spontaneously study symmetry-breaking, symmetry-protected topological, and intrinsic topologically ordered phases, and we show that symmetries of the local tensors associated with these phases can emerge directly after the optimization without any gauge fixing. This provides a universal way to identify quantum phase transitions without prior knowledge of the system.

关键词： Magnetism Topological order Quantum many-body systems Tensor network methods

来源：评论

学校读者我要写书评

暂无评论

Correction to: Role of NADPH oxidase and its therapeutic intervention in TGF-β-mediated EMT progression: an in vitro analysis on HeLa cervical cancer cells

引用

Applied Biological Chemistry 2021年第1期64卷 1-1页

作者： Muthuramalingam, Karthika Cho, Moonjae Kim, Youngmee Department of Biochemistry School of Medicine Jeju National University Jeju Republic of Korea Institute of Medical Science Jeju National University Jeju Republic of Korea Interdisciplinary Graduate Program in Advanced Convergence Technology & Science Jeju National University Jeju Republic of Korea

来源：评论

学校读者我要写书评

暂无评论

AB0055 THE ROLES OF OX40L AND TNF BISPECIFIC ANTIBODY IN OSTEOCLASTOGENESIS

引用

Annals of the Rheumatic Diseases 2023年 82卷 1206-1207页

作者： H.S. Kwon J.Y. Kim S.U. Kim J.S. Lee H.R. Kang S. Ban E.Y. Lee Seoul National University Department of Cancer Biology Seoul Korea Rep. of (South Korea) Seoul National University Hospital Division of Rheumatology Department of Internal Medicine Seoul Korea Rep. of (South Korea) Korea Advanced Institute of Science and Technology Graduate School of Medical Science and Engineering Daejeon Korea Rep. of (South Korea) Seoul National University Interdisciplinary Program in Cancer Biology Seoul Korea Rep. of (South Korea) Seoul National University Integrated Major in Innovative Medical Science Seoul Korea Rep. of (South Korea)

Background Rheumatoid arthritis (RA) is a chronic, inflammatory disease that leads to progressive cartilage and bone destruction. OX40 ligand (OX40L) is expressed predominantly on antigen-presenting cells and highly associated with joint inflammation in RA [1] . Yet, the role of OX40L in osteoclastogenesis is unclear. Objectives In this study, we investigated the effects of dual blocking of TNF and OX40L by bispecific antibody (IMB-101) on RANKL-induced osteoclastogenesis. Methods CD14+ monocytes were isolated from peripheral blood mononuclear cells (PBMCs) of healthy donors (n=6). CD14+ monocytes were cultured with M-CSF (20ng/ml) and RANKL (40ng/ml) for 6 to 7 days in the presence of TNF antibody, OX40L antibody, or bispecific antibody. TRAP-positive multinucleated giant cells (>3 nuclei/cell) were counted as osteoclast. PU.1, RANK and NFATc1, markers of osteoclast differentiation were assessed by the quantitative reverse transcription PCR (RT-qPCR). The expression of OX40L was analyzed in the presence of RANKL or TNF at the early and late stage of osteoclast differentiation. Results The expression of OX40L was increased by RANKL and TNF at the early stage of osteoclast differentiation (day 3) in a TNF dose-dependent manner. IMB-101 decreased RANKL-induced osteoclastogenesis via downregulating NFATc1 expression (Figure 1). IMB-101 further reduced PU.1, RANK and NFATc1 expression during early stage of osteoclast differentiation (day 3) compared to TNF inhibitor or TNF inhibitor and OX40L inhibitor (n=3). Conclusion Our data suggested that IMB-101 might have a beneficial effect on imbalance of the bone resorption in RA especially by suppressing osteoclast differentiation. Reference [1]Yoshioka, Taro et al. “Contribution of OX40/OX40 ligand interaction to the pathogenesis of rheumatoid arthritis.” European Journal of Immunology 30 (2000): n. pag. Acknowledgements: NIL. Disclosure of Interests None Declared. Download: Download high-res image (124KB) Download: Download

关键词：

来源：评论

学校读者我要写书评

暂无评论

Topological Thermal Hall Effect of Magnons in Magnetic Skyrmion Lattice

arXiv

引用

arXiv 2021年

作者： Akazawa, Masatoshi Lee, Hyun-Yong Takeda, Hikaru Fujima, Yuri Tokunaga, Yusuke Arima, Taka-Hisa Han, Jung Hoon Yamashita, Minoru The Institute for Solid State Physics The University of Tokyo Kashiwa277-8581 Japan Department of Applied Physics Graduate School Korea University Sejong30019 Korea Republic of Division of Display and Semiconductor Physics Korea University Sejong30019 Korea Republic of Interdisciplinary Program in E·ICT-Culture-Sports Convergence Korea University Sejong30019 Korea Republic of Department of Advanced Materials Science University of Tokyo Kashiwa277-8561 Japan Department of Physics Sungkyunkwan University Suwon16419 Korea Republic of

Topological transports of fermions are governed by the Chern numbers of the energy bands lying below the Fermi energy. For bosons, e.g. phonons and magnons in a crystal, topological transport is dominated by the Chern number of the lowest energy band when the band gap is comparable to the thermal energy. Here, we demonstrate the presence of topological transport by bosonic magnons in a lattice of magnetic skyrmions – topological defects formed by a vortex-like texture of spins. We find a distinct thermal Hall signal in the magnetic skyrmion phase of an insulating polar magnet GaV4Se8, identified as the topological thermal Hall effect of magnons governed by the Chern number of the lowest energy band of the magnons in a triangular lattice of magnetic skyrmions. Our findings lay a foundation for studying topological phenomena of other bosonic excitations through thermal Hall probe. © 2021, CC BY.

关键词： Topology

来源：评论

学校读者我要写书评

暂无评论

Cover Feature: Ultrafine Sn Nanoparticles Anchored on Nitrogen- and Phosphorus-Doped Hollow Carbon Frameworks for Lithium-Ion Batteries (ChemElectroChem 15/2018)

引用

ChemElectroChem 2018年第15期5卷 2053-2053页

作者： Jiseop Oh Jeongyeon Lee Youngmoo Jeon Jong Min Kim Kwang-dong Seong Taejin Hwang Seungman Park Prof. Yuanzhe Piao Program in Nano Science and Technology Graduate School of Convergence Science and Technology Seoul National University Seoul 151-744 Republic of Korea Advanced Institutes of Convergence Technology 864-1 lui-dong Yeongtong-gu Suwon-si Gyeonggi-do 443-270 Republic of Korea

来源：评论

学校读者我要写书评

暂无评论

Variational Tensor Network Operator

arXiv

引用

arXiv 2022年

作者： Chen, Yu-Hsueh Hsu, Ke Tu, Wei-Lin Lee, Hyun-Yong Kao, Ying-Jer Center for Theoretical Physics Department of Physics National Taiwan University Taipei10607 Taiwan Division of Display and Semiconductor Physics Korea University Sejong30019 Korea Republic of Department of Applied Physics Graduate School Korea University Sejong30019 Korea Republic of Interdisciplinary Program in E·ICT-Culture-Sports Convergence Korea University Sejong30019 Korea Republic of Center for Quantum Science and Technology National Taiwan University Taipei10607 Taiwan

We propose a simple and generic construction of the variational tensor network operators to study the quantum spin systems by the synergy of ideas from the imaginary-time evolution and variational optimization of trial wave functions. By applying these operators to simple initial states, accurate variational ground state wave functions with extremely few parameters can be obtained. Furthermore, the framework can be applied to study spontaneously symmetry breaking, symmetry protected topological, and intrinsic topologically ordered phases, and we show that symmetries of the local tensors associated with these phases can emerge directly after the optimization without any gauge fixing. This provides a universal way to identify quantum phase transitions without prior knowledge of the system. Copyright © 2022, The Authors. All rights reserved.

关键词： Tensors

来源：评论

学校读者我要写书评

暂无评论

Entanglement properties of disordered quantum spin chains with long-range antiferromagnetic interactions

引用

Physical Review B 2020年第21期102卷 214201-214201页

作者： Y. Mohdeb J. Vahedi N. Moure A. Roshani Hyun-Yong Lee R. N. Bhatt Stefan Kettemann Stephan Haas Department of Physics and Earth Sciences Jacobs University Bremen Bremen 28759 Germany Technische Universität Braunschweig Institut für Mathematische Physik Mendelssohnstr. 3 38106 Braunschweig Germany Department of Physics Sari Branch Islamic Azad University Sari 48164-194 Iran Department of Physics and Astronomy University of Southern California Los Angeles California 90089-0484 USA Department of Applied Physics Graduate School Korea University Sejong 30019 Korea Division of Display and Semiconductor Physics Korea University Sejong 30019 Korea Interdisciplinary Program in EċICT-Culture-Sports Convergence Korea University Sejong 30019 Korea Department of Electrical Engineering Princeton University Princeton New Jersey 08544 USA School of Natural Sciences Institute for Advanced Study Princeton New Jersey 08540 USA Division of Advanced Materials Science Pohang University of Science and Technology (POSTECH) Pohang 790-784 Korea

Entanglement measures are useful tools in characterizing otherwise unknown quantum phases and indicating transitions between them. Here we examine the concurrence and entanglement entropy in quantum spin chains with random long-range couplings, spatially decaying with a power-law exponent α. Using the strong disorder renormalization group (SDRG) technique, we find by analytical solution of the master equation a strong disorder fixed point, characterized by a fixed point distribution of the couplings with a finite dynamical exponent, which describes the system consistently in the regime α>12. A numerical implementation of the SDRG method yields a power-law spatial decay of the average concurrence, which is also confirmed by exact numerical diagonalization. However, we find that the lowest-order SDRG approach is not sufficient to obtain the typical value of the concurrence. We therefore implement a correction scheme which allows us to obtain the leading-order corrections to the random singlet state. This approach yields a power-law spatial decay of the typical value of the concurrence, which we derive both by a numerical implementation of the corrections and by analytics. Next, using numerical SDRG, the entanglement entropy (EE) is found to be logarithmically enhanced for all α, corresponding to a critical behavior with an effective central charge c=ln(2), independent of α. This is confirmed by an analytical derivation. Using numerical exact diagonalization (ED), we confirm the logarithmic enhancement of the EE and a weak dependence on α. For a wide range of partition size l, the EE fits a critical behavior with a central charge close to c=1, which is the same as for the clean Haldane-Shastry model with a power-law-decaying interaction with α=2. Only for small l≪L, in a range which increases with the number of spins N, we find deviations which are rather consistent with the strong disorder fixed point central charge c=ln(2). Furthermore, we find using ED that the conc

关键词： Magnetism Quantum entanglement Disordered systems Doped semiconductors Density matrix methods Exact diagonalization Renormalization group Tensor network methods

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：