Biswas, Deepnarayan, Sahadev, Nishaina, Adhikary, Ganesh, Balakrishnan, Geetha and Maiti, Kalobaran (2013) Evolution of the electronic structure of HoB_{4} with temperature. Physical Review B (Condensed Matter and Materials Physics), Volume 88 (Number 13). Article number 134405 . doi:10.1103/PhysRevB.88.134405

Research output not available from this repository, contact author.

Request Changes to record.

Abstract

We studied the electronic structure of a Shastry-Sutherland lattice system, HoB4 employing high-resolution photoemission spectroscopy and ab initio band-structure calculations. The surface and bulk borons exhibit subtle differences and loss of boron compared to the stoichiometric bulk. However, the surface and bulk conduction bands near Fermi level are found to be similar. Evolution of the electronic structure with temperature is found to be similar to that observed in a typical charge-disordered system. A sharp dip is observed at the Fermi level in the low-temperature spectra revealing a signature of antiferromagnetic gap. Asymmetric spectral weight transfer with temperature manifests particle-hole asymmetry that may be related to the exotic properties of these systems.

Item Type:	Journal Article
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Physical Review B (Condensed Matter and Materials Physics)
Publisher:	American Physical Society
ISSN:	1098-0121
Official Date:	2013
Dates:	Date Event 2013 UNSPECIFIED
Volume:	Volume 88
Number:	Number 13
Page Range:	Article number 134405
DOI:	10.1103/PhysRevB.88.134405
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

Request changes or add full text files to a record

Repository staff actions (login required)

View Item