New anti-perovskite-type Superconductor ZnNyNi3

TL;DR

This paper reports the synthesis and characterization of a new Ni-based anti-perovskite superconductor, ZnNyNi3, with a critical temperature of approximately 3 K, expanding the family of such materials.

Contribution

The study introduces a novel anti-perovskite superconductor ZnNyNi3 and provides detailed experimental superconducting parameters, marking the third known Ni-based anti-perovskite superconductor.

Findings

Superconducting transition temperature Tc ~3 K

Determined key superconducting parameters such as Hc1, Hc2, coherence length, penetration depth, and Ginzburg-Landau parameter

Crystal structure matches anti-perovskite type like MgCNi3 and CdCNi3

Abstract

We have synthesized a new superconductor ZnNyNi3 with Tc ~3 K. The crystal structure has the same anti-perovskite-type such as MgCNi3 and CdCNi3. As far as we know, this is the third superconducting material in Ni-based anti-perovskite series. For this material, superconducting parameters, lower-critical field Hc1(0), upper-critical field Hc2(0), coherence length x(0), penetration depth l(0), and Gintzburg -Landau parameter k(0) have been experimentally determined.