Electronic structure and the Fermi surface of ThRhIn$_5$ in comparison with uranium and transuranium compounds

TL;DR

This paper investigates the electronic structure and Fermi surface of ThRhIn$_5$ using relativistic calculations, revealing similarities with related compounds and discussing the role of f-electron configurations.

Contribution

It provides the first detailed relativistic band structure and Fermi surface analysis of ThRhIn$_5$, comparing it with similar rare-earth and actinide compounds.

Findings

Identification of cylindrical Fermi surface sheets in ThRhIn$_5$

Similarity of Fermi surfaces with CeTIn$_5$, PuTGa$_5$, and AmCoGa$_5$

Discussion of f-electron number effects on electronic structure

Abstract

By using a relativistic linear augmented-plane-wave method, we clarify energy band structure and the Fermi surfaces of recently synthesized thorium compound ThRhIn$_5$. We find several cylindrical Fermi surface sheets, which are similar to those of CeTIn$_5$ (T=Ir and Co), PuTGa$_5$ (T=Co and Rh), and AmCoGa$_5$. We discuss such similarity among the compounds including rare-earth or actinide ions with different $f$ electron numbers.