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Layered van der Waals Topological Metals of TaTMTe4 (TM = Ir, Rh, Ru) Family.
Shipunov, G; Piening, B R; Wuttke, C; Romanova, T A; Sadakov, A V; Sobolevskiy, O A; Guzovsky, E Yu; Usoltsev, A S; Pudalov, V M; Efremov, D V; Subakti, S; Wolf, D; Lubk, A; Büchner, B; Aswartham, S.
Afiliação
  • Shipunov G; Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.
  • Piening BR; Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.
  • Wuttke C; Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.
  • Romanova TA; P. N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia.
  • Sadakov AV; P. N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia.
  • Sobolevskiy OA; P. N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia.
  • Guzovsky EY; P. N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia.
  • Usoltsev AS; P. N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia.
  • Pudalov VM; P. N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia.
  • Efremov DV; Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.
  • Subakti S; Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.
  • Wolf D; Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.
  • Lubk A; Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.
  • Büchner B; Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany.
  • Aswartham S; Institute of Solid State and Materials Physics, Technische Universität Dresden, 01062 Dresden, Germany.
J Phys Chem Lett ; 12(28): 6730-6735, 2021 Jul 22.
Article em En | MEDLINE | ID: mdl-34264086
ABSTRACT
Layered van der Waals materials of the family TaTMTe4 (TM = Ir, Rh, Ru) are showing interesting electronic properties. We report the growth and characterization of TaIrTe4, TaRhTe4, TaIr1-xRhxTe4 (x = 0.06, 0.14, 0.78, 0.92), Ta1+xRu1-xTe4 single crystals. X-ray powder diffraction confirms that TaRhTe4 is isostructural to TaIrTe4. All these compounds are metallic with diamagnetic behavior. Below T ≈ 4 K we observed signatures of the superconductivity in the TaIr1-xRhxTe4 compounds for x = 0.92. All samples show weak quadratic-in-field magnetoresistance (MR). However, for TaIr1-xRhxTe4 with x ≈ 0.78, the MR has a linear term dominating in low fields that indicates the presence of Dirac cones in the vicinity of the Fermi energy. For TaRhTe4 series the MR is almost isotropic. Electronic structure calculations for TaIrTe4 and TaRhTe4 reveal appearance of the Rh band close to the Fermi level.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: J Phys Chem Lett Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Alemanha
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: J Phys Chem Lett Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Alemanha