Properties and superconductivity in Ti-doped NiTe2 single crystals

Abstract

Transition metal dichalcogenides (TMDs) usually show simple structures, however, with interesting properties. Recently some TMDs have been pointed out as type-II Dirac semimetals. In the present work, we investigate the physical properties of a new candidate for type-II Dirac semimetal and investigate the effect of titanium doping on physical properties of Ti-doped single crystalline samples of NiTe2. It was found that this compound shows a superconducting properties with a critical temperature close to 4.0 K. Interestingly, applied pressures up to 1.3 GPa have no effect upon the superconducting state. Density Functional Theory (DFT) calculations demonstrate the presence of a Dirac cone in the band structure of NiTe2 literature when Spin-Orbit Coupling (SOC) is included, which is in agreement with a recent report for this compound. Also, our calculations demonstrate that Ti suppresses the formation of these non-trivial states.

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Cited by in corpus (9)

• Nanomaterials for Quantum Information Science and Engineering
• A comprehensive review on topological superconducting materials and interfaces
• Strain-engineering the topological type-II Dirac semimetal NiTe${}_2$
• Evidence for multiband superconductivity and charge density waves in Ni-doped ZrTe${}_2$
• Ab initio modeling of superconducting alloys
• Superconductivity in Te-deficient ZrTe${}_2$
• Tuning multiple Landau Quantization in Transition-Metal Dichalcogenide with Strain
• Sn2Pd: a possible superconducting material with topological surface states
• Molecular Beam Epitaxy Growth and Doping Modulation of Topological Semimetal NiTe${}_2$