文献检索-宁波市创意产业特色资源库

限定检索结果

检索条件"作者=M.Zahid Hasan"

共 1 条记录，以下是1-10 订阅

全选清除本页清除全部题录导出标记到"检索档案"

视图：

排序：

量子自旋霍尔绝缘体Bi_(4)Br_(4)体与边缘的可区分的光学性质研究: 收藏
分享
引用; 《Science Bulletin》2023年第4期68卷 417-423,M0004页; 作者：韩俊峰毛鹏程陈海龙殷嘉鑫王茂原陈东云李永恺郑靖川张旭马大帅马琼余智明周金健刘铖铖王业亮贾爽翁羽翔 m.zahid hasan 肖文德姚裕贵Centre for Quantum PhysicsKey Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement(Ministry of Education)School of PhysicsBeijing Institute of TechnologyBeijing 100081China Yangtze Delta Region Academy of Beijing Institute of TechnologyJiaxing 314000China Beijing Key Laboratory of Nanophotonics&Ultrafine Optoelectronic SystemsBeijing Institute of TechnologyBeijing 100081China Analysis&Testing CenterBeijing Institute of TechnologyBeijing 100081China Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing 100190China Songshan Lake Materials LaboratoryDongguan 523808China School of Physical SciencesUniversity of Chinese Academy of SciencesBeijing 100190China Laboratory for Topological Quantum Matter and Advanced Spectroscopy(B7)Department of PhysicsPrinceton UniversityPrinceton NJ 08544USA Department of PhysicsXiamen UniversityXiamen 361005China Department of PhysicsBoston CollegeChestnut Hill MA 02467USA School of Integrated Circuits and ElectronicsMIIT Key Laboratory for Low-Dimensional Quantum Structure and DevicesBeijing Institute of TechnologyBeijing 100081China International Center for Quantum MaterialsSchool of PhysicsPeking UniversityBeijing 100871China Department of PhysicsChongqing UniversityChongqing 400044China; 量子自旋霍尔绝缘体拥有具有带隙的体态和无能隙的一维拓扑边缘态.然而,由于拓扑边缘态局域在纳米尺度,所以很难用光学手段直接观测并区分体态和边缘态,这就限制了对拓扑边缘态独特的光学特性和光电响应等方面的研究和应用.Bi_(4)Br_(4...; 量子自旋霍尔绝缘体拥有具有带隙的体态和无能隙的一维拓扑边缘态.然而,由于拓扑边缘态局域在纳米尺度,所以很难用光学手段直接观测并区分体态和边缘态,这就限制了对拓扑边缘态独特的光学特性和光电响应等方面的研究和应用.Bi_(4)Br_(4)体材料的台阶存在一维非平庸的边缘态,多个台阶累加的效应使得通过较为宏观的光学和光电分析手段来研究一维边缘态成为可能.该工作利用中远红外显微吸收光谱和泵浦探测光谱,对比研究了Bi_(4)Br_(4)体和边缘的光学响应行为.研究发现Bi_(4)Br_(4)的边缘在小于带隙(约0.22 eV)的波段存在明显的强于体内的红外吸收,且该吸收呈现较强的各向异性.室温下的红外泵浦探测首次观察到边缘处载流子激发态超长的弛豫时间(1.5 ns),该激发态载流子寿命要比体内载流子寿命长两个量级.该工作证实体态和拓扑边缘态具有明显不同的光学和光电响应行为,为未来设计新型红外探测器提供了材料和物理基础.; 来源：详细信息评论

全选清除本页清除全部题录导出标记到“检索档案”

共1页<< <1> >>

聚类工具回到顶部