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Shipunov G, Piening BR, Wuttke C, Romanova TA, Sadakov AV, Sobolevskiy OA, Guzovsky EY, Usoltsev AS, Pudalov VM, Efremov DV, Subakti S, Wolf D, Lubk A, Büchner B, Aswartham S. Layered van der Waals Topological Metals of TaTMTe 4 (TM = Ir, Rh, Ru) Family. J Phys Chem Lett 2021; 12:6730-6735. [PMID: 34264086 DOI: 10.1021/acs.jpclett.1c01648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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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Affiliation(s)
- G Shipunov
- Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
| | - B R Piening
- Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
| | - C Wuttke
- Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
| | - T A Romanova
- P. N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia
| | - A V Sadakov
- P. N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia
| | - O A Sobolevskiy
- P. N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia
| | - E Yu Guzovsky
- P. N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia
| | - A S Usoltsev
- P. N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia
| | - V M Pudalov
- P. N. Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia
| | - D V Efremov
- Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
| | - S Subakti
- Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
| | - D Wolf
- Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
| | - A Lubk
- Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
| | - B Büchner
- Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
- Institute of Solid State and Materials Physics, Technische Universität Dresden, 01062 Dresden, Germany
- Würzburg-Dresden Cluster of Excellence ct.qmat, Technische Universität Dresden, 01062 Dresden, Germany
| | - S Aswartham
- Institute for Solid State Research, Leibniz IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
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Gorina JI, Kaljuzhnaya GA, Golubkov MV, Rodin VV, Sentjurina NN, Stepanov VA, Chernook SG, Omel’yanovskii OE, Sadakov AV. Growth and properties of layered oxycarbonate Bi2Sr4Cu2CO3O8 single crystals. CRYSTALLOGR REP+ 2010. [DOI: 10.1134/s1063774510030259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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