Condensed Matter Seminar
Magnetic signature in the electronic structure of intercalated TMD materials
Mr. Bar Segura
BGU
Abstract
MSc seminar (PI: Dr. Muntaser Naamneh)
Transition metal dichalcogenides (TMDs) and their magnetically intercalated counterparts host a rich tapestry of quantum phenomena, ranging from superconductivity and charge density waves to exotic magnetic states. In this talk, we focus on the complex magnetic ground states of Co-intercalated TMDs (CoX3S6, where X = Nb, Ta). While recent studies have primarily focused on how known magnetic orders alter the electronic structure, we reverse this perspective. Using high resolution angle resolved photoemission spectroscopy (ARPES), we exploit predicted electronic signatures to decipher elusive magnetic configurations. Specifically, by analyzing the dispersion and number of Van Hove singularities (VHS) near the Fermi level along the high-symmetry cuts, we differentiate between single and triple Q magnetic configurations. Our results demonstrate how electronic structure topology can serve as a direct, definitive fingerprint to illuminate complex magnetic ground states in van der Waals quantum magnets.
Transition metal dichalcogenides (TMDs) and their magnetically intercalated counterparts host a rich tapestry of quantum phenomena, ranging from superconductivity and charge density waves to exotic magnetic states. In this talk, we focus on the complex magnetic ground states of Co-intercalated TMDs (CoX3S6, where X = Nb, Ta). While recent studies have primarily focused on how known magnetic orders alter the electronic structure, we reverse this perspective. Using high resolution angle resolved photoemission spectroscopy (ARPES), we exploit predicted electronic signatures to decipher elusive magnetic configurations. Specifically, by analyzing the dispersion and number of Van Hove singularities (VHS) near the Fermi level along the high-symmetry cuts, we differentiate between single and triple Q magnetic configurations. Our results demonstrate how electronic structure topology can serve as a direct, definitive fingerprint to illuminate complex magnetic ground states in van der Waals quantum magnets.