Title

Effect Of Pressure On Crystal Structure And Superconductivity Of Nbsexte2−x (x = 2, 1.5)

Document Type

Article

Publication Date

1-1-2018

Publication Title

Chemical Physics Letters

Publisher

Elsevier B.V.

Volume

692

First page number:

249

Last page number:

252

Abstract

The high pressure structural and transport behaviors of transition metal dichalchogenides NbSexTe2−x (x = 2, 1.5) were investigated using powder X-ray diffraction and resistivity measurements. The structural results show all these title compounds remain stable under application of pressure up to 39 GPa. The lattice compressibilites were determined and show highly anisotropic behavior. A change in superconducting transition temperature dependent on composition was observed. The resistivity measurements performed under pressure for NbSe1.5Te0.5 revealed strong enhancement in transition temperature with Tc increasing from 3.35 K at ambient, to 4.4 K at 1.8 GPa, at a rate of 0.6 K/GPa. © 2017

Language

English

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