Manifestations of electronic correlations in the diffraction of electron pairs from crystals

被引：33

作者：

Berakdar, J ^{[1
]}

Samarin, SN ^{[1
]}

Herrmann, R ^{[1
]}

Kirschner, J ^{[1
]}

机构：

[1] Max Planck Inst Mikrostrukturphys, D-06120 Halle, Germany

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.81.3535

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The energy-sharing spectra of correlated electron pairs ejected from Cu(001) and Fe(110) surfaces reveal characteristic structures associated with diffraction of the pair from the lattice. It is demonstrated theoretically and experimentally that (1) the momentum-space positions of these new features are determined by the change of the center-of-mass wave vector of the pairs as compared to the reciprocal lattice vector, and (2) the relative intensities of the peaks and the shapes of the individual peaks are dependent on the internal correlation of the pairs. Possible pathways for the pair creation are envisaged at various diffracted beams.

引用

页码：3535 / 3538

页数：4

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