A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 1998; you can also visit the original URL.
The file type is
The downward shift of the electron chemical potential m with hole doping in La 22x Sr x CuO 4 has been deduced from the shifts of photoemission and inverse-photoemission spectra. While the shift is large (ϳ1.5 eV͞hole) in overdoped samples, it is suppressed (,0.2 eV͞hole) in underdoped samples, implying a divergent charge susceptibility near the metal-insulator transition. In the overdoped regime, the m and the electronic specific heat coefficient g are consistently explained withindoi:10.1103/physrevlett.79.2101 fatcat:h64jvkur3vho5atrjtebbedapy