Observation of multiple metastable states induced by electric pulses in the hysteresis temperature range of 1TTaS2

Yongchang Ma, Zequn Wang, Yanhui Hou, Dong Wu, Cuimin Lu, and Cedomir Petrovic
Phys. Rev. B 99, 045102 – Published 2 January 2019

Abstract

The electric pulses induced responses of 1TTaS2 in the commensurate charge-density-wave phase in the hysteresis temperature region (160210 K) have been investigated. We observed an abrupt jump of the resistance excited by pulse, followed by a slow relaxation process in a time scale of 100 s. At a fixed temperature, the various electric pulses can drive the system to multi metastable states. We propose that the spontaneous evolution or slow relaxation of the system by pulse excitations corresponds to the rearrangements of the textures of CCDW domains.

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  • Received 13 September 2018
  • Revised 6 December 2018

DOI:https://doi.org/10.1103/PhysRevB.99.045102

©2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Yongchang Ma1,*, Zequn Wang1, Yanhui Hou1, Dong Wu2, Cuimin Lu1, and Cedomir Petrovic3

  • 1School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
  • 2International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
  • 3Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA

  • *ycma@tjut.edu.cn

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Vol. 99, Iss. 4 — 15 January 2019

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