Superconductivity at 3.85 K in BaPd2As2 with the ThCr2Si2-type structure
Qi Guo, Jia Yu, Bin-Bin Ruan, Dong-Yun Chen, Xiao-Chuan Wang, Qing-Ge, Mu, Bo-Jin Pan, Gen-Fu Chen, Zhi-An Ren
TL;DR
This paper reports the discovery of superconductivity at 3.85 K in BaPd2As2, a compound with ThCr2Si2-type structure, characterized by comprehensive structural and physical measurements, highlighting its higher Tc among similar materials.
Contribution
First successful synthesis and characterization of superconductivity in BaPd2As2 with detailed structural and physical property analysis.
Findings
Superconductivity observed at 3.85 K in BaPd2As2
Structural parameters determined by X-ray diffraction
Superconducting transition temperature higher than related compounds
Abstract
The single crystal of ThCr2Si2-type BaPd2As2 was successfully prepared by a self-flux method, and the crystal structure was characterized by X-ray diffraction method with the lattice parameters a = 4.489(2) {\AA} and c = 10.322(3) {\AA}. Bulk superconductivity below a Tc (critical temperature) of 3.85 K was revealed in this compound by the measurements of resistivity, magnetic susceptibility and specific heat, and this Tc is much higher than those of other isostructural Pd-based superconductors.
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