A. Gremaud et al., METAL TO INSULATOR TRANSITION OF K-SN ZINTL SYSTEM INVESTIGATED BY ULTRAVIOLET PHOTOELECTRON-SPECTROSCOPY, Helvetica Physica Acta, 71, 1998, pp. 17-18
Due to structural effects the intermetallic phases of certain alloys o
f alkali and polyvalent metals reveal a metal to non-metal transition
as a function of concentration ratio. This transition is observed by v
alence band spectroscopy on K-x Sn1-x thin films with synchrotron radi
ation.