Superconductivity versus magnetism in the palladium 'ides': Pd$_{1-c}$(H/D/T)$_{c}$

TL;DR

This study investigates how increasing hydrogen, deuterium, or tritium concentration in palladium alloys suppresses magnetism and enables superconductivity, revealing the interplay between these phenomena in amorphous palladium alloys.

Contribution

It demonstrates that higher concentrations of H/D/T in Pd alloys reduce magnetism and induce superconductivity, providing insights into magnetic suppression mechanisms in amorphous palladium.

Findings

Higher H/D/T concentration lowers magnetism in Pd alloys.

Superconductivity appears at approximately 40% concentration.

Results support the predicted magnetism in amorphous palladium.

Abstract

In general, conventional superconductivity and magnetism are competing phenomena. In some alloys this competition is a function of the concentration of the elements. Here we show that in the palladium alloys Pd$_{1-c}$(H/D/T)$_{c}$ (Pd-ides) the increase in the concentration $c$ of the ides: hydrogen, deuterium, tritium (H/D/T), lowers the predicted magnetism of amorphous palladium ($a$-Pd) gradually, allowing superconductivity to appear for $ c \approx 40\%$. This magnetism explains why superconductivity does not manifest for smaller values of $c$ ($c \leq 40\%$) in these Pd alloys. Also, these results validate indirectly our predicted magnetism in the amorphous/porous palladium ($a/p$-Pd). The understanding of the interplay between magnetism and superconductivity may contribute to the comprehension of the magnetic behavior in materials, especially in high $T_{c}$ superconductors, with the corresponding implications.