Structural and magnetotransport properties of topological trivial LuNiBi single crystals

被引：9

作者：

Chen, Jie ^{[1
,2
,3
]}

Li, Hang ^{[1
,2
,3
]}

Ding, Bei ^{[1
,2
,3
]}

Hou, Zhipeng ^{[1
,2
]}

Liu, Enke ^{[1
,2
]}

Xi, Xukui ^{[1
,2
]}

Zhang, Hongwei ^{[1
,2
]}

Wu, Guangheng ^{[1
,2
]}

Wang, Wenhong ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, State Key Lab Magnetism, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 784卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Half-Heusler; Single crystal; Gapless semiconductor; Spin-orbital coupling; Weak antilocalization (WAL) effect; Magnetoresistance; HEUSLER; SUPERCONDUCTIVITY;

D O I：

10.1016/j.jallcom.2019.01.128

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, we have grown the high-quality LuNiBi single crystals by a Bi flux method. The band gaps from calculation and fitting RT curve both show a small value that indicates LuNiBi is a gapless semiconductor. And we present the magnetic field dependency of transport properties for LuNiBi single crystal. Because of the strong spin-orbital coupling (SOC), some fascinating transport properties were observed. A cusp in the low magnetic field region that is similar to weak antilocalization (WAL) effect was observed in magnetoresistance (MR). And large MR reaching to 105% at a field of 2T and 81% at 1T field makes LuNiBi single crystal become a potential material candidate for applications in high-sensitivity magnetic sensors. (C) 2019 Published by Elsevier B.V.

引用

页码：822 / 826

页数：5

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