PdTe a 4.5K Type II BCS Superconductor

TL;DR

This paper investigates the synthesis, structure, and physical properties of a bulk Palladium Tellurium superconductor with a critical temperature of 4.5K, providing detailed measurements of its critical fields, coherence length, and specific heat.

Contribution

It presents the first detailed characterization of PdTe superconductor, including synthesis method, structural analysis, and physical property measurements.

Findings

Critical temperature (Tc) is 4.5K.

Lower and upper critical fields are 250 G and 1200 G at 2K.

Coherence length is 45 nm, GL parameter is 1.48.

Abstract

We report on the structure and physical properties of bulk Palladium Tellurium superconductor, which is synthesized via quartz vacuum encapsulation technique at 750 C. The as synthesized compound is crystallized in hexagonal crystal structure. Magnetization and Magneto-transport measurements provided the values of lower and upper critical field to be 250 and 1200 Gauss respectively at 2 Kelvin. The Coherence length and GL parameter are estimated from the experimentally determined upper and lower critical fields, which are 45 nm and 1.48 respectively. The jump in Cp(T) at Tc is found to be 1.33 and the Debye temperature and electronic specific heat constant are 203 Kelvin and 6.01mJ/mole-K2 respectively.