Nonquasiparticle states in half-metallic ferromagnet NiMnSb

TL;DR

This paper investigates nonquasiparticle states in NiMnSb, a half-metallic ferromagnet, using advanced first-principles calculations to evaluate their spectral weight and suggest experimental detection methods.

Contribution

It provides a quantitative analysis of nonquasiparticle states in NiMnSb and discusses potential experimental approaches for their observation.

Findings

Quantitative spectral weight of nonquasiparticle states calculated

Proposed experimental techniques for detection outlined

Enhanced understanding of electronic states in NiMnSb

Abstract

Nonquasiparticle states above the Fermi energy are studied by first-principle dynamical mean field calculations for a prototype half-metallic ferromagnet, NiMnSb. We present a quantitative evaluation of the spectral weight of this characteristic feature and discuss the possible experimental investigation (BIS, NMR, STM and Andreev reflection) to clarify the existence of these states.