检索结果-南通市图书馆

Emerging weak antilocalization effect in Ta_(0.7)Nb_(0.3)Sb_(2)semimetal single crystals

Frontiers of physics 2023年第1期18卷 123-132页

作者： Meng Xu Lei Guo Lei Chen Ying Zhang Shuang-Shuang Li Weiyao Zhao Xiaolin Wang Shuai Dong Ren-Kui Zheng College of Science Hohai UniversityNanjing 210098China School of Physics Southeast UniversityNanjing 211189China School of Physics and Materials Science Guangzhou UniversityGuangzhou 510006China School of Materials Science and Engineering Jiangxi Engineering Laboratory for Advanced Functional Thin FilmsNanchang UniversityNanchang 330031China Department of Materials Science&Engineering Monash UniversityClayton 3800 VICAustralia Institute for Superconducting and Electronic Materials &ARC Centre of Excellence in Future Low-Energy Electronics TechnologiesInnovation CampusUniversity of WollongongNorth Wollongong NSW 2500Australia

weak antilocalization(WAL)effect is commonly observed in low-dimensional systems,three-dimensional(3D)topological insulators and ***,we report the growth of high-quality Ta_(0.7)Nb_(0.3)Sb_(2)single crystals via the chemical vapor transport(CVT).Clear sign of the WAL effect is observed below 50 K,probably due to the strong spin–orbital coupling in 3D *** addition,it is worth noting that a relatively large MR of 120%appears under 1 T magnetic field at T=2 *** measurements and two-band model fitting results reveal high carrier mobility(>1000 cm^(2)·V^(–1)·s^(–1)in 2–300 K region),and off-compensation electron/hole ratio of~8:*** to the angular dependence of the WAL effect and the fermiology of the Ta_(0.7)Nb_(0.3)Sb_(2)crystals,interesting magnetic-field-induced changes of the symmetry of the anisotropic magnetoresistance(MR)from two-fold(≤0.6 T)to four-fold(0.8–1.5 T)and finally to two-fold(≥2 T)are *** phenomenon is attributed to the mechanism shift from the low-field WAL dominated MR to WAL and fermiology co-dominated MR and finally to high-field fermiology dominated *** these signs indicate that Ta_(0.7)Nb_(0.3)Sb_(2)may be a topological semimetal candidate,and these magnetotransport properties may attract more theoretical and experimental exploration of the(Ta,Nb)Sb_(2)family.

关键词： topological semimetal magnetoresistance weak antilocalization effect spin-orbital coupling

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

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

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

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：