Volume 138, Number 3, May 2022
|Number of page(s)||7|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||24 May 2022|
Anisotropic magnetoresistance and possible weak antilocalization in Mg3Bi2 single crystal
1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences Beijing 100190, China
2 University of Chinese Academy of Sciences - Beijing 100049, China
3 School of Physical Sciences, University of Chinese Academy of Sciences - Beijing 100049, China
4 Songshan Lake Materials Laboratory - Dongguan, Guangdong 523808, China
Received: 15 January 2022
Accepted: 22 April 2022
Kagome compound Mg3Bi2 has recently been proposed as a type-II nodal-line semimetal, which may exhibit novel transport phenomena. We grew Mg3Bi2 single crystals by a Bi flux method and systematically investigated the magneto-transport properties. A large transverse magnetoresistance anisotropy around 20 was observed for I // (00l) at 2 K under a magnetic field of 5 T. The gourd-shaped out-plane angle-dependent magnetoresistance indicates that the Fermi surface has a two-fold symmetry and strong anisotropy. The cusp-like magnetoresistance for I // (0kl) (k = integer, ) at low temperature and low magnetic field shows evidence of weak antilocalization. The magnetoconductance measured at different angle merges together when plotted as a function of at , showing that the domination of topological surface states when .
© 2022 EPLA
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.