检索结果-南通市图书馆

Larger in-plane upper critical field and superconducting diode effect observed in topological superconductor candidate InNbS_(2)nanoribbons

引用

Nano Research 2024年第7期17卷 6686-6694页

作者： Bo Zheng Changlong Wang Xukun Feng Xiaozhen Sun Shasha Wang Dawei Qiu Xiang Ma Ruimin Li Guanglei Cheng Lan Wang Yalin Lu Peng Li Shengyuan a.yang Bin Xiang Department of Materials Science and Engineering CAS Key Lab of Materials for Energy ConversionAnhui Laboratory of Advanced Photon Science and TechnologyUniversity of Science and Technology of ChinaHefei 230026China Research Laboratory for Quantum Materials Singapore University of Technology and DesignSingapore 487372Singapore School of Microelectronics University of Science and Technology of ChinaHefei 230052China CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences University of Science and Technology of ChinaHefei 230026China Lab of Low Dimensional Magnetism and Spintronic Devices School of PhysicsHefei University of TechnologyHefei 230009China Research Laboratory for Quantum Materials IAPMEUniversity of MacaoMacaoChina

Recently,the coexistence of topology and superconductivity has garnered considerable ***,the dimensionality of these materials is crucial for the realization of topological quantum ***,the naturally grown materials,especially with one-dimensional feature that exhibits the coexistence of topology and superconductivity,still face challenges in terms of experimental realization and scalability,which hinders the fundamental research development and the potential to revolutionize quantum ***,we report the first experimental synthesis of quasi-one-dimensional InNbS_(2)nanoribbons that exhibit the coexistence of topological order and superconductivity via a chemical vapor transport ***,the inplane upper critical field of InNbS_(2)nanoribbons exceeds the Pauli paramagnetic limit by more than 2.2 times,which can be attributed to the enhanced spin-orbit coupling and the weakened interlayer interaction between the NbS_(2)layers induced by the insertion of In atoms,making InNbS_(2)exhibit spin-momentum locking similar to that of monolayer NbS_(2).Moreover,for the first time,we report the superconducting diode effect in a quasi-one-dimensional superconductor system without any inherent geometric *** measured maximum efficiency is manifested as 14%,observed atμ0H≈±60 mT,and we propose that the superconducting diode effect can potentially be attributed to the presence of the nontrivial topological *** work provides a platform for studying exotic phenomena in condensed matter physics and potential applications in quantum computing and quantum information processing.

关键词： topological order superconductivity nanoribbon superconducting anisotropy superconducting diode

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

On a Class of Non-local Operators in Conformal Geometry

引用

Chinese Annals of Mathematics,Series B 2017年第1期38卷 215-234页

作者： Sun Yung Alice CHANG Ray a.yang Mathematics Department Princeton UniversityFine HallWashington RoadPrinceton New Jersey 08544-1000USA

In this expository article, the authors discuss the connection between the study of non-local operators on Euclidean space to the study of fractional GJMS operators in conformal geometry. The emphasis is on the study of a class of fourth order operators and their third order boundary operators. These third order operators are generalizations of the Dirichlet-to-Neumann operator.

关键词： High order fractional GJMS operator Generalized boundary Yamabe problem Sobolov trace extension

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

COMPUTER-AID ANALYSIS FOR CRACKING OF 280 CONNECTING ROD OF 16V280ZJ DIESEL LOCOMOTIVE ON QUENCHING PROCESS

引用

Acta Metallurgica Sinica(English Letters) 2004年第1期17卷 83-91页

作者： J.S.Ye a.yang Y.Luo Hangzhou Iron & Steel Group Co.Technology Center.Hangzhou 310022 ChinaZiyang Internal-Combustion Plant of Sichuang Ziyang 641000 ChinaZiyang Internal-Combustion Plant of Sichuang Ziyang 641000 China

280 connecting rod is one of the most important parts for 16V280ZJ diesel locomotive, so it needs much better mechanical performance. However, the crack is often generated at the middle section of connecting rod body on heat treatment process. A temperature-phase transformation-stress coupled 3D non-linear mathematical model has been developed to analyze the reasons of cracking. The simulation and experimental results show that the compressive stress on the cracking position is close to the fracture stress of connecting rod and the reasons of crack are mainly contributed to the carbon content excess of original material or the aging of quenchant.

关键词： crack phase transformation non-linear compressive stress

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Type-II topological metals

引用

Frontiers of physics 2020年第4期15卷 101-112页

作者： Si Li Zhi-Ming Yu Yugui Yao Shengyuan a.yang Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Department of Physics and Synergetic Innouation Center for Quantum Efects and ApplicationsHunan Norrmal UniversityChangsha 410081China Research Laboratory for Quantum Materials Singapore University of Technology and DesignSingapore 487372Singapore Key Lab of Advanced Optoelectronic Quantum Architecture and Measurement(MOE) Beijing Key Lab of Nanophotonics&Utrafine Optoelectronic Systemsand School of PhysicsBeijing Institute of TechnologyBeijing 100081China

Topological metals(TMs)are a kind of special metallic materials,which feature nontrivial band Cross-ings near the Fermi energy,giving rise to peculiar quasiparticle *** can be classified based on the characteristics of these band *** example,according to the dimensionality of the crossing,TMs can be classifed into nodal-point,nodal-line,and nodal-surface *** important property is the type of *** to degree of the tilt of the local dispersion around the crossing,we have typeI and type-II *** leads to significant distinctions in the physical properties of the materials,owing to their contrasting Fermi surface *** this article,we briefly review the recent advances in this research direction,focusing on the concepts,the physical properties,and the material realizations of the type-Il nodal-point and nodal-line TMs.

关键词： type-II nodal point nodal line topological metals

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Three-dimensional acetylenic modified graphene for highperformance optoelectronics and topological materials

引用

npj Computational Materials 2021年第1期7卷 992-998页

作者： Yan Gao Chengyong Zhong Shengyuan a.yang Kai Liu Zhong-Yi Lu Department of physics and Beijing Key Laboratory of Opto-electronic Functional Materials&Micro-nano Devices Renmin University of ChinaBeijingChina Institute for Advanced Study Chengdu UniversityChengduChina Research Laboratory for Quantum Materials Singapore University of Technology and DesignSingaporeSingapore Center for Quantum Transport and Thermal Energy Science School of Physics and TechnologyNanjing Normal UniversityNanjingChina

Seeking carbon phases with versatile properties is one of the fundamental goals in physics,chemistry,and materials ***,based on the first-principles calculations,a family of three-dimensional(3D)graphene networks with abundant and fabulous electronic properties,including rarely reported dipole-allowed truly direct band gap semiconductors with suitable band gaps(1.07–1.87 eV)as optoelectronic/photovoltaic materials and topological nodal-ring semimetals,are proposed through stitching different graphene layers with acetylenic ***,the optical absorption coefficients in some of those semiconducting carbon allotropes express possibly the highest performance among all of the semiconducting carbon phases known to *** the other hand,the topological states in those topological nodal-ring semimetals are protected by the time-reversal and spatial symmetry and present nodal rings and nodal helical loops topological *** newly revealed carbon phases possess low formation energies and excellent thermodynamic stabilities;thus,they not only host a great potential in the application of optoelectronics,photovoltaics,and quantum topological materials etc.,but also can be utilized as catalysis,molecule sieves or Liion anode materials and so ***,the approach used here to design novel carbon allotropes may also give more enlightenments to create various carbon phases with different applications.

关键词： dimensional topological versatile

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Two-dimensional topological semimetals

引用

Chinese Physics B 2021年第10期30卷 1-13页

作者： Xiaolong Feng Jiaojiao Zhu Weikang Wu Shengyuan a.yang Research Laboratory for Quantum Materials Singapore University of Technology and DesignSingapore 487372Singapore Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological UniversitySingapore 637371Singapore

The field of two-dimensional topological semimetals,which emerged at the intersection of two-dimensional materials and topological materials,has been rapidly developing in recent *** this article,we briefly review the progress in this *** focus is on the basic concepts and notions,in order to convey a coherent overview of the *** material examples are discussed to illustrate the *** discuss the outstanding problems in the field that need to be addressed in future research.

关键词： topological semimetals two-dimensional materials electronic structures

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Topological hinge modes in Dirac semimetals

引用

Frontiers of physics 2023年第1期18卷 85-95页

作者： Xu-Tao Zeng Ziyu Chen Cong Chen Bin-Bin Liu Xian-Lei Sheng Shengyuan a.yang School of Physics Beihang UniversityBeijing 100191China Department of Physics The University of Hong KongHong KongChina Peng Huanwu Collaborative Center for Research and Education Beihang UniversityBeijing 100191China Research Laboratory for Quantum Materials Singapore University of Technology and DesignSingapore 487372Singapore Center for Quantum Transport and Thermal Energy Science School of Physics and TechnologyNanjing Normal UniversityNanjing 210023China

Dirac semimetals(DSMs)are an important class of topological states of ***,focusing on DSMs of band inversion type,we investigate their boundary modes from the effective model *** show that in order to properly capture the boundary modes,k-cubic terms must be included in the effective model,which would drive an evolution of surface degeneracy manifold from a nodal line to a nodal *** k-cubic terms are also needed for better exposing the topological hinge modes in the *** first-principles calculations,we demonstrate that this feature and the topological hinge modes can be clearly exhibited inβ-*** extend the discussion to magnetic DSMs and show that the time-reversal symmetry breaking can gap out the surface bands and hence is beneficial for the experimental detection of hinge ***,we show that magnetic DSMs serve as a parent state for realizing multiple other higher-order topological phases,including higher-order Weyl-point/nodal-line semimetals and higher-order topological insulators.

关键词： topological hinge Dirac semimetals

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Strong Coupled Magnetic and Electric Ordering in Monolayer of Metal Thio(seleno)phosphates

引用

Chinese Physics Letters 2021年第7期38卷 145-150页

作者： Chenqiang Hua Hua Bai Yi Zheng Zhu-An Xu Shengyuan a.yang Yunhao Lu Su-Huai Wei Zhejiang Province Key Laboratory of Quantum Technology and Device State Key Laboratory of Silicon MaterialsDepartment of PhysicsZhejiang UniversityHangzhou 310027China Research Laboratory for Quantum Materials Singapore University of Technology and DesignSingapore 487372Singapore Beijing Computational Science Research Center Beijing 100193China

The coupling between electric ordering and magnetic ordering in two-dimensional(2D)materials is important for both fundamental research of 2D multiferroics and future development of magnetism-based information storage and ***,we introduce a scheme for realizing a magnetic phase transition through the transition of electric *** take CuMoP_(2)S_(6) monolayer as an example,which is a member of the large 2D transition-metal chalcogen-phosphates *** on first-principles calculations,we find that it is a multiferroic with unprecedented characters,namely,it exhibits two different phases:an antiferroelectric-antiferromagnetic phase and a ferroelectric-ferromagnetic phase,in which the electric and magnetic orderings are strongly ***,the electric polarization is out-of-plane,so the magnetism can be readily switched by using the gate electric *** finding reveals a series of 2D multiferroics with special magnetoelectric coupling,which hold great promise for experimental realization and practical applications.

关键词： ferroelectric coupling transition

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Room-temperature third-order nonlinear Hall effect in Weyl semimetal TalrTe4

引用

National Science Review 2022年第12期9卷 177-184页

作者： Cong Wang Rui-Chun Xiao Huiying Liu Zhaowei Zhang Shen Lai Chao Zhu Hongbing Cai Naizhou Wang Shengyao Chen Ya Deng Zheng Liu Shengyuan a.yang Wei-Bo Gao College of Mathematics and Physics Beijing University of Chemical Technology Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Institute of Physical Science and Information Technology Anhui University Research Laboratory for Quantum Materials Singapore University of Technology and Design School of Materials Science and Engineering Nanyang Technological University CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology The Photonics Institute and Centre for Disruptive Photonic Technologies Nanyang Technological University

The second-order nonlinear Hall effect observed in the time-revers al symmetric system has not only shown abundant physical content,but also exhibited potential application ***,a third-order nonlinear Hall effect has been observed in MoTe2and ***,few-layer MoTe2and WTe2are usually unstable in air and the observed third-order nonlinear Hall effect can be measured only at low temperature,which hinders further investigation as well as potential ***,exploring new air-stable material systems with a sizable third-order nonlinear Hall effect at room temperature is an urgent ***,in type-Ⅱ Weyl semimetal TaIrTe4,we observed a pronounced third-order nonlinear Hall effect,which can exist at room temperature and remain stable for *** third-order nonlinear Hall effect is connected to the Berry-connection polarizability tensor instead of the Berry *** possible me chanism of the observation of the third-order nonlinear Hall effe ct in TaIrTe4at room temperature has been *** findings will open an avenue towards exploring room-temperature nonlinear devices in new quantum materials.

关键词： topological material third-order nonlinear Hall effect room temperature Berry connection polarizability tensor

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Two-dimensional MnN utilized as high-capacity anode for Li-ion batteries

引用

Chinese Physics B 2021年第4期30卷 402-408页

作者： Junping Hu Zhangyin Wang Genrui Zhang Yu Liu Ning Liu Wei Li Jianwen Li Chuying Ouyang Shengyuan a.yang Key Laboratory of Optoelectronic Materials and New Energy Technology Nanchang Institute of TechnologyNanchang 330099China Department of Physics Laboratory of Computational Materials PhysicsJiangxi Normal UniversityNanchang 330022China Research Laboratory for Quantum Materials Singapore University of Technology and DesignSingapore 487372Singapore

When developing high performance lithium-ion batteries,high capacity is one of the key *** the last decade,the progress of two-dimensional(2 D) materials has provided new opportunities for boosting the storage ***,based on first-principles calculation method,we predict that MnN monolayer,a recently proposed 2 D nodal-loop halfmetal containing the metallic element Mn,can be used as a super high-capacity lithium-ion batteries *** theoretical capacity is above 1554 mA-h/g,more than four times that of ***,it also satisfies other requirements for a good anode ***,we demonstrate that MnN is mechanically,dynamically,and thermodynamically *** configurations before and after lithium adsorption exhibit good electrical *** study of Li diffusion on its surface reveals a very low diffusion barrier(~ 0.12 eV),indicating excellent rate *** calculated average open-circuit voltage of the corresponding half-cell at full charge is also very low(~0.22 V),which facilitates higher operating *** addition,the lattice changes of the material during lithium intercalation are very small(~ 1.2%-~4.8%),which implies good cycling *** results suggest that 2 D MnN can be a very promising anode material for lithium-ion batteries.

关键词： first-principles calculations Li-ion batteries energy storage physical propertyies

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

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：