Current direction dependent magnetotransport in CuTe

Ying Kit Tsui, C. N. Kuo, C. E. Hsu, Wei Zhang, Wenyan Wang, Shanmin Wang, Wing Chi Yu, H. C. Hsueh, C. S. Lue, Swee K. Goh

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Despite being a layered, easily-exfoliated compound, copper monotelluride (CuTe) features an unusual quasi-one-dimensional charge density wave below TCDW≈335K. Within a CuTe layer, the electrical resistivity depends sensitively on the direction of the electrical current. Here, we use magnetotransport to probe the metallic state of CuTe with two distinct in-plane current directions. When the current flows along the a axis (I//a), the magnetoresistance exhibits a downward curvature as the magnetic field increases. On the other hand, when the current is along the b axis (I//b), the magnetoresistance shows the opposite curvature. Our analysis uncovers a violation of Kohler scaling, but only for I//a. Shubnikov-de Haas oscillations are detected at low temperatures. Our results shed light on the nature of the metallic state in CuTe with the development of the charge density wave.

Original languageEnglish
Article number115162
JournalPhysical Review B
Volume108
Issue number11
DOIs
Publication statusPublished - 2023 Sept 15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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