AUGER AND PHOTOELECTRON STUDY OF THE HUBBARD-U IN C-60, K3C60, AND K6C60

被引：72

作者：

BRUHWILER, PA ^{[1
]}

MAXWELL, AJ ^{[1
]}

NILSSON, A ^{[1
]}

MARTENSSON, N ^{[1
]}

GUNNARSSON, O ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,D-70569 STUTTGART 80,GERMANY

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.48.18296

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Comparison of valence-photoelectron to Auger-electron spectra has been carried out fbr three phases of KxC60, x = 0, 3, 6, yielding Hubbard correlation energies, U, of 1.4 eV (1.5 eV) for x =0 (6), consistent with the results of Lof et al. [Phys. Rev. Lett. 68, 3924 (1992)]. At x = 3 the results are best described by intermolecular charge-transfer screening of the C Is core hole in the Auger initial state, with U of the same magnitude as for x = 0 and 6.

引用

页码：18296 / 18299

页数：4

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