Inelastic X-ray scattering as a novel tool to study electronic excitations in complex insulators

被引：6

作者：

Hasan, MZ ^{[1
]}

Isaacs, E

Shen, ZX

Miller, LL

机构：

[1] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[2] Stanford Linear Accelerator Ctr, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA

[3] Lucent Technol, Bell Labs, Murray Hill, NJ 07974 USA

[4] Iowa State Univ, Ames Labs, Ames, IA 50011 USA

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 2001年 / 114卷

关键词：

inelastic X-ray scattering; Mott insulators; correlated electron systems; electronic structure of cuprate superconductors; unoccupied bands; momentum-resolved spectroscopy;

D O I：

10.1016/S0368-2048(00)00401-1

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

We report particle-hole excitations in a cuprate insulator in the intermediate regimes of momentum-transfers (qa(o) similar to1.4 pi -3.1 pi, where q is the scattering vector and a, is the lattice constant) using high energy inelastic X-ray scattering. The excitation spectra show dispersive features near the Mott edge which shed light on the momentum structure of the upper Hubbard band in cuprates. We discuss the potential use of such a technique to study the momentum dependence of unoccupied bands in complex insulators. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：705 / 709

页数：5

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