Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/92553
Title: Electronic properties of WTe2 and MoTe2 single crystals
Authors: Domozhirova, A. N.
Makhnev, A. A.
Shreder, E. I.
Naumov, S. V.
Lukoyanov, A. V.
Chistyakov, V. V.
Huang, J. C. A.
Semiannikova, A. A.
Korenistov, P. S.
Marchenkov, V. V.
Issue Date: 2019
Publisher: Institute of Physics Publishing
Citation: Electronic properties of WTe2 and MoTe2 single crystals / A. N. Domozhirova, A. A. Makhnev, E. I. Shreder, S. V. Naumov, et al.. — DOI 10.1088/1742-6596/1389/1/012149 // Journal of Physics: Conference Series. — 2019. — Vol. 1. — Iss. 1389. — 12149.
Abstract: WTe2 and MoTe2 single crystals were grown, and their electrical resistivity in the temperature range from 80 K to 300 K, optical properties at room temperature in the spectral range of 0.17-5.0 eV were studied as well as theoretical calculations of the electronic structure were performed. It is shown that the temperature dependence of the electrical resistivity of orthorhombic WTe2 has a metallic type with resistivity value of (0.5-1) mOhmcm, while hexagonal MoTe2 has a semiconductor one and resistivity value (0.5-1) Ohmcm, which is three orders of magnitude larger than the resistivity of WTe2. Optical properties indicated that there is no contribution from free carriers in the entire spectral range studied. The calculated densities of the electronic states of MoTe2 and WTe2 showed the presence of a bunch of the molybdenum and tungsten electronic states in a wide energy interval with strong admixing of tellurium states. In the WTe2 compound, the larger number of the electronic states is located near the Fermi energy, characterizing a more metallic state in this compound as compared to MoTe2. © Published under licence by IOP Publishing Ltd.
Keywords: CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRONIC PROPERTIES
ELECTRONIC STATES
ELECTRONIC STRUCTURE
MOLYBDENUM COMPOUNDS
OPTICAL PROPERTIES
SEMICONDUCTING TELLURIUM COMPOUNDS
SINGLE CRYSTALS
TEMPERATURE DISTRIBUTION
ENERGY INTERVAL
METALLIC STATE
MOLYBDENUM AND TUNGSTEN
RESISTIVITY VALUES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
THEORETICAL CALCULATIONS
THREE ORDERS OF MAGNITUDE
TUNGSTEN COMPOUNDS
URI: http://hdl.handle.net/10995/92553
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85076747841
WOS ID: 000562319800149
PURE ID: 11764633
ISSN: 1742-6588
DOI: 10.1088/1742-6596/1389/1/012149
metadata.dc.description.sponsorship: Government Council on Grants, Russian Federation: 02, 211
Russian Foundation for Basic Research, RFBR: 17-52-52008
Ministry of Education and Science of the Russian Federation, Minobrnauka: АААА-А18-118020190098-5
The research was carried out within the state assignment of Ministry of Education and Science of the Russian Federation (theme “Spin” No. АААА-А18-118020290104-2 and theme “Electron” No. АААА-А18-118020190098-5), supported in part by RFBR (Project No. 17-52-52008) and the Government of Russian Federation (Decree No. 211, Contract No. 02.A03.21.0006).
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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