Relativistic effects in LaBi 2 thin films
Abstract
Relativistic spin-orbit coupling (SOC) is an important ingredient for discovering novel electronic phenomena in quantum materials. In this work, the authors investigate the consequences of strong SOC on the physical properties of the LaPn${}_{2}$ (Pn = Sb, Bi) class of layered square-net materials via the synthesis of LaBi${}_{2}$ thin films. They report a layer-by-layer growth mode, a previously mis-indexed monoclinic structure type, and classify the compound as a good metal displaying superconductivity at ~0.55 K. Compared to LaSb${}_{2}$, density functional theory calculations attribute the enhanced metallic behavior and growth dynamics of LaBi${}_{2}$ to significant relativistic corrections to its electronic band structure.
Fields of Study & Subjects
Rare-earth and actinide compounds
Superconductivity in MgB2 and Alloys
Iron-based superconductors research
Publication details
- Journal / source
- Physical Review Materials
- Publisher
- American Physical Society (APS)
- Volume
- 10
- Issue
- 5
- Publication date
- 21 May 2026
- Language
- EN