Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/103166
Title: Peculiarities of the electro- And magnetoresistivity of WTe2and MoTe2single crystals before and after quenching
Authors: Domozhirova, A. N.
Naumov, S. V.
Podgornykh, S. M.
Marchenkova, E. B.
Chistyakov, V. V.
Huang, J. C. A.
Marchenkov, V. V.
Issue Date: 2021
Publisher: American Institute of Physics Inc.
Citation: Peculiarities of the electro- And magnetoresistivity of WTe2and MoTe2single crystals before and after quenching / A. N. Domozhirova, S. V. Naumov, S. M. Podgornykh, et al. — DOI 10.1063/9.0000182 // AIP Advances. — 2021. — Vol. 11. — Iss. 1. — 015226.
Abstract: WTe2 and MoTe2 single crystals were grown, some of them were quenched, and the following properties were studied: electroresistivity in the temperature range from 1.8 to 300 K, magnetoresistivity at temperatures from 1.8 to 300 K in magnetic fields of up to 9 T. On the one hand, quenching leads to dramatic changes in the behaviour and value of the electroresistivity of MoTe2; the type of the electroresistivity changes from "semiconductor"to "metallic", and the electroresistivity values of MoTe2 before and after quenching differ by 8 orders of magnitude (!) at low temperatures. On the other hand, quenching is shown not to lead to significant changes in the behaviour and value of the electroresistivity of WTe2. A relatively small increase in the electroresistivity of quenched WTe2 at low temperatures can be associated with the scattering of current carriers by structural defects. The magnetoresistivity of MoTe2 increases from 7 to 16% in a field of 9 T at a temperature of 12 K as a result of quenching. The magnetoresistivity of WTe2 is shown to reach ∼1700% in a field of 9 T at 2 K. The behaviour of the magnetoresistivity of non-quenched samples is typical for compensated conductors with a closed Fermi surface. © 2021 Author(s).
Keywords: MOLYBDENUM COMPOUNDS
QUENCHING
TELLURIUM COMPOUNDS
CURRENT CARRIERS
LOW TEMPERATURES
ORDERS OF MAGNITUDE
STRUCTURAL DEFECT
TEMPERATURE RANGE
TUNGSTEN COMPOUNDS
URI: http://hdl.handle.net/10995/103166
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85099332997
PURE ID: 20518536
6cf9ffbc-762c-4f6b-86fe-d4c144dbc592
ISSN: 21583226
DOI: 10.1063/9.0000182
metadata.dc.description.sponsorship: The research was carried out within the state assignment of Ministry of Education and Science of the Russian Federation (theme “Spin”, No. AAAA-A18-118020290104-2), supported in part by RFBR (Project No. 20-32-90069) and the Government of the Russian Federation (Decree No. 211, Contract No. 02.A03.21.0006).
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