Publication Date

1-13-2020

Department

Ames Laboratory; Physics and Astronomy

Campus Units

Ames Laboratory, Physics and Astronomy

Report Number

IS-J 10139

DOI

10.1103/PhysRevMaterials.4.014801

Journal Title

Physical Review B

Volume Number

4

Issue Number

1

First Page

014801

Abstract

We report the observation of superconductivity in single-crystalline CaPd2P2 and SrPd2P2 obtained from Bi-flux. Both CaPd2P2 and SrPd2P2 crystallize in the ThCr2Si2-type structure (space group I4/mmm) with a short P-P distance. Electrical resistivity and specific heat measurements conjointly corroborate bulk superconductivity at Tc∼1.0 K with ΔC/γTc=1.42 for CaPd2P2, and Tc∼0.7 K with ΔC/γTc=1.47 for SrPd2P2. The electronic structure calculations and chemical bonding analysis indicate that Pd-P antibonding interactions primarily dominate around the Fermi level and play the critical role in inducing superconductivity.

DOE Contract Number(s)

AC02-07CH11358

Language

en

Publisher

Iowa State University Digital Repository, Ames IA (United States)

Share

COinS