Probing the Band Structure of LaTe_2 Using Angle Resolved Photoemission Spectroscopy

TL;DR

This study uses high-resolution ARPES to investigate the band structure of LaTe_2 in its charge density wave state, aiming to clarify theoretical models and guide future research in rare-earth tellurides.

Contribution

It provides detailed experimental band structure data of LaTe_2 in the CDW state, highlighting discrepancies with previous theories and offering insights for future theoretical and experimental work.

Findings

Experimental band structure data obtained via ARPES.

Identification of discrepancies with existing theoretical models.

Clarification of prior ambiguities in LaTe_2 electronic structure.

Abstract

With the current interest in the rare-earth tellurides as high temperature charge density wave materials, a greater understanding of the physics of these systems is needed, particularly in the case of the ditellurides. We report a detailed study of the band structure of LaTe_2 in the charge density wave state using high-resolution angle resolved photoemission spectroscopy (ARPES). From this work we hope to provide insights into the successes and weaknesses of past theoretical study as well as helping to clear up prior ambiguities by providing an experimental basis for future work in the tellurides.