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Title: Anisotropic Fermi Surface and Quantum Limit Transport in High Mobility Three-Dimensional Dirac Semimetal Cd 3 As 2

Abstract

Three-dimensional (3D) topological Dirac semimetals have a linear dispersion in the 3D momentum space and are viewed as the 3D analogues of graphene. Here, we report angle dependent magnetotransport on the newly revealed Cd3As2 single crystals and clearly show how the Fermi surface evolves with crystallographic orientations. Remarkably, when the magnetic field lies in [112] or [44$$\bar{1}$$] axis, magnetoresistance oscillations with only single period are present. However, the oscillation shows double periods when the field is applied along [1$$\bar{1}$$0] direction. Moreover, aligning the magnetic field at certain directions also gives rise to double period oscillations. We attribute the observed anomalous oscillation behavior to the sophisticated geometry of Fermi surface and illustrate a complete 3D Fermi surfaces with two nested anisotropic ellipsoids around the Dirac points. Additionally, a sub-millimeter mean free path at 6 K is found in Cd3As2 crystals, indicating ballistic transport in this material. By measuring the magnetoresistance up to 60 T, we reach the quantum limit (n = 1 Landau level) at about 43 T. Lastly, these results improve the knowledge of the Dirac semimetal material Cd3As2, and also pave the way for proposing new electronic applications based on 3D Dirac materials.

Authors:
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Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC)
OSTI Identifier:
1221693
Alternate Identifier(s):
OSTI ID: 1221641; OSTI ID: 1355461
Grant/Contract Number:  
AC02-06CH11357; 11222434; 11534001; 11174007; 2013CB934600; 2015CB921102; 2012CB921300
Resource Type:
Published Article
Journal Name:
Physical Review. X
Additional Journal Information:
Journal Name: Physical Review. X Journal Volume: 5 Journal Issue: 3; Journal ID: ISSN 2160-3308
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; condensed matter physics; electronics; materials science

Citation Formats

Zhao, Yanfei, Liu, Haiwen, Zhang, Chenglong, Wang, Huichao, Wang, Junfeng, Lin, Ziquan, Xing, Ying, Lu, Hong, Liu, Jun, Wang, Yong, Brombosz, Scott M., Xiao, Zhili, Jia, Shuang, Xie, X. C., and Wang, Jian. Anisotropic Fermi Surface and Quantum Limit Transport in High Mobility Three-Dimensional Dirac Semimetal Cd 3 As 2. United States: N. p., 2015. Web. https://doi.org/10.1103/PhysRevX.5.031037.
Zhao, Yanfei, Liu, Haiwen, Zhang, Chenglong, Wang, Huichao, Wang, Junfeng, Lin, Ziquan, Xing, Ying, Lu, Hong, Liu, Jun, Wang, Yong, Brombosz, Scott M., Xiao, Zhili, Jia, Shuang, Xie, X. C., & Wang, Jian. Anisotropic Fermi Surface and Quantum Limit Transport in High Mobility Three-Dimensional Dirac Semimetal Cd 3 As 2. United States. https://doi.org/10.1103/PhysRevX.5.031037
Zhao, Yanfei, Liu, Haiwen, Zhang, Chenglong, Wang, Huichao, Wang, Junfeng, Lin, Ziquan, Xing, Ying, Lu, Hong, Liu, Jun, Wang, Yong, Brombosz, Scott M., Xiao, Zhili, Jia, Shuang, Xie, X. C., and Wang, Jian. Wed . "Anisotropic Fermi Surface and Quantum Limit Transport in High Mobility Three-Dimensional Dirac Semimetal Cd 3 As 2". United States. https://doi.org/10.1103/PhysRevX.5.031037.
@article{osti_1221693,
title = {Anisotropic Fermi Surface and Quantum Limit Transport in High Mobility Three-Dimensional Dirac Semimetal Cd 3 As 2},
author = {Zhao, Yanfei and Liu, Haiwen and Zhang, Chenglong and Wang, Huichao and Wang, Junfeng and Lin, Ziquan and Xing, Ying and Lu, Hong and Liu, Jun and Wang, Yong and Brombosz, Scott M. and Xiao, Zhili and Jia, Shuang and Xie, X. C. and Wang, Jian},
abstractNote = {Three-dimensional (3D) topological Dirac semimetals have a linear dispersion in the 3D momentum space and are viewed as the 3D analogues of graphene. Here, we report angle dependent magnetotransport on the newly revealed Cd3As2 single crystals and clearly show how the Fermi surface evolves with crystallographic orientations. Remarkably, when the magnetic field lies in [112] or [44$\bar{1}$] axis, magnetoresistance oscillations with only single period are present. However, the oscillation shows double periods when the field is applied along [1$\bar{1}$0] direction. Moreover, aligning the magnetic field at certain directions also gives rise to double period oscillations. We attribute the observed anomalous oscillation behavior to the sophisticated geometry of Fermi surface and illustrate a complete 3D Fermi surfaces with two nested anisotropic ellipsoids around the Dirac points. Additionally, a sub-millimeter mean free path at 6 K is found in Cd3As2 crystals, indicating ballistic transport in this material. By measuring the magnetoresistance up to 60 T, we reach the quantum limit (n = 1 Landau level) at about 43 T. Lastly, these results improve the knowledge of the Dirac semimetal material Cd3As2, and also pave the way for proposing new electronic applications based on 3D Dirac materials.},
doi = {10.1103/PhysRevX.5.031037},
journal = {Physical Review. X},
number = 3,
volume = 5,
place = {United States},
year = {2015},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevX.5.031037

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