z-logo
open-access-imgOpen Access
Absence of X-Point Band Overlap in Divalent Hexaborides and Variability of the Surface Chemical Potential
Author(s) -
Jonathan D. Denlinger,
G.-H. Gweon,
SungKwan Mo,
J. W. Allen,
J. L. Sarrao,
A. Bianchi,
Z. Fisk
Publication year - 2002
Publication title -
journal of the physical society of japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 139
eISSN - 1347-4073
pISSN - 0031-9015
DOI - 10.1143/jpsjs.71s.1
Subject(s) - angle resolved photoemission spectroscopy , materials science , photoemission spectroscopy , band gap , condensed matter physics , electronic structure , valence (chemistry) , electronic band structure , inverse photoemission spectroscopy , x ray photoelectron spectroscopy , molecular physics , physics , nuclear magnetic resonance , optoelectronics , quantum mechanics
Angle-resolved photoemission measurements of divalent hexaborides reveals a >1 eV X-point gap between the valence and conduction bands, in contradiction to the band overlap assumed in several models of their novel ferromagnetism. While the global ARPES band structure and gap size observed are consistent with the results of bulk-sensitive soft x-ray absorption and emission boron K-edge spectroscopy, the surface-sensitive photoemission measurements also show a variation with cation, surface and time of the position of the surface chemical potential in the band structure.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here
Accelerating Research

Address

John Eccles House
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom