Bulk Band Gaps in Divalent Hexaborides: A Soft X-Ray Emission Study
arXiv:cond-mat/0107426 · doi:10.1142/S0218625X0200372X
Abstract
Boron K-edge soft x-ray emission and absorption are used to address the fundamental question of whether divalent hexaborides are intrinsic semimetals or defect-doped bandgap insulators. These bulk sensitive measurements, complementary and consistent with surface-sensitive angle-resolved photoemission experiments, confirm the existence of a bulk band gap and the location of the chemical potential at the bottom of the conduction band.
5 pages, 2 figures, submitted to VUV-13