Volume 117, Number 2, January 2017
|Number of page(s)||7|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||15 March 2017|
Anisotropic magneto-transport and magnetic properties of low-temperature phase of TaTe2
1 Research & Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences - Beijing 100190, China
2 School of Physical Sciences, University of Chinese Academy of Sciences - Beijing 100049, China
3 Collaborative Innovation Center of Quantum Matter - Beijing 100084, China
Received: 9 December 2016
Accepted: 21 February 2017
TaTe2 is a quasi-2D charge density wave (CDW) compound with distorted-1T–type structure exhibiting double-zigzag chains. Here we report the Fermi surface topology of a low-temperature phase of TaTe2 (LT-TaTe2) by anisotropic magneto-transport and magnetic measurements on high-quality single crystals. An anomalous large linear magnetoresistance up to 140% at 3 K in 9 T was observed, suggesting the existence of a small Fermi pocket in the Dirac cone state in quantum transport models. Moreover, strong magnetic anisotropy was observed for B⊥(001) and B∥(001). Angle-dependent magnetoresistance and de Hass-van Alphen oscillations suggest the anisotropy of the normal Fermi surface and the small Fermi pocket in Dirac cone state.
PACS: 75.47.-m – Magnetotransport phenomena; materials for magnetotransport / 71.45.Lr – Charge-density-wave systems / 75.30.Gw – Magnetic anisotropy
© EPLA, 2017
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