Back to Search
Start Over
Peculiarities of the electro- and magnetoresistivity of WTe2 and MoTe2 single crystals before and after quenching.
- Source :
- AIP Advances; Jan2021, Vol. 11 Issue 1, p1-4, 4p
- Publication Year :
- 2021
-
Abstract
- WTe<subscript>2</subscript> and MoTe<subscript>2</subscript> 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 MoTe<subscript>2</subscript>; the type of the electroresistivity changes from "semiconductor" to "metallic", and the electroresistivity values of MoTe<subscript>2</subscript> 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 WTe<subscript>2</subscript>. A relatively small increase in the electroresistivity of quenched WTe<subscript>2</subscript> at low temperatures can be associated with the scattering of current carriers by structural defects. The magnetoresistivity of MoTe<subscript>2</subscript> 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 WTe<subscript>2</subscript> 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21583226
- Volume :
- 11
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- AIP Advances
- Publication Type :
- Academic Journal
- Accession number :
- 148403767
- Full Text :
- https://doi.org/10.1063/9.0000182