Phase transition in IrTe2 induced by spin-orbit coupling. (December 2016)

• Record Type: Journal Article
• Authors: Koley, S.
• Is Part Of: Solid state communications. Volume 247(2016)
• Page Start: 40
• Page End: 46
• Publication Date: 2016-12
• Subjects: Solid state chemistry -- Periodicals; Solid state physics -- Periodicals; Chimie de l'état solide -- Périodiques; Physique de l'état solide -- Périodiques; 530.41
• DOI: 10.1016/j.ssc.2016.08.015
• Languages: English
• ISSNs: 0038-1098

Abstract

Abstract: IrTe2 has been renewed as an interesting system showing competing phenomenon between a questionable density-wave transition near 270 K followed by superconductivity with doping of high atomic number materials. Higher atomic numbers of Te and Ir supports strong spin-orbital coupling in this system. Using dynamical mean field theory with LDA band structure I have introduced Rashba spin orbit coupling in this system to get the interpretation for anomalous resistivity and related transition in this system. While no considerable changes are observed in DMFT results of Ir-5d band other than orbital selective pseudogap 'pinned' to Fermi level, Te-p band shows a van Hove singularity at the Fermi level except low temperature. Finally I discuss the implications of these results in theoretical understanding of ordering in IrTe 2 . Abstract : Highlights: LDA+DMFT study of IrTe2 . DMFT resitivity and optical conductivity. DMFT calculation of ARPES and Fermi surface.