Chiral anomaly and ultrahigh mobility in crystalline HfTe5

Huichao Wang, Chao-Kai Li, Haiwen Liu, Jiaqiang Yan, Junfeng Wang, Jun Liu, Ziquan Lin, Yanan Li, Yong Wang, Liang Li, David Mandrus, X. C. Xie, Ji Feng, and Jian Wang
Phys. Rev. B 93, 165127 – Published 19 April 2016
PDFHTMLExport Citation

Abstract

HfTe5 is predicted to be a promising platform for studying topological phases. Here through an electrical transport study, we present an observation of chiral anomaly and ultrahigh mobility in HfTe5 crystals. Negative magnetoresistivity in HfTe5 is observed when the external magnetic and electrical fields are parallel (B//E) and quickly disappears once B deviates from the direction of E. Quantitative fitting further confirms the chiral anomaly as the underlying physics. Moreover, by analyzing the conductivity tensors of longitudinal and Hall traces, ultrahigh mobility and ultralow carrier density are revealed in HfTe5, which paves the way for potential electronic applications.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 30 December 2015
  • Revised 24 March 2016

DOI:https://doi.org/10.1103/PhysRevB.93.165127

©2016 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
  1. Physical Systems
  1. Properties
Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Huichao Wang1,2, Chao-Kai Li1,2, Haiwen Liu1,2,3, Jiaqiang Yan4,5, Junfeng Wang6, Jun Liu7, Ziquan Lin6, Yanan Li1,2, Yong Wang7, Liang Li6, David Mandrus4,5, X. C. Xie1,2, Ji Feng1,2, and Jian Wang1,2,*

  • 1International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
  • 2Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
  • 3Center for Advanced Quantum Studies, Department of Physics, Beijing Normal University, Beijing, 100875, China
  • 4Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
  • 5Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
  • 6Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China
  • 7Center of Electron Microscopy, State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China

  • *Corresponding author: jianwangphysics@pku.edu.cn

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 93, Iss. 16 — 15 April 2016

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×