Electron-lattice interaction in cuprates

被引：62

作者：

Egami, T

机构：

[1] Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 1996年 / 105卷 / 3-4期

关键词：

D O I：

10.1007/BF00768480

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Experimental studies of local structure by pulsed neutron PDF analysis on manganites and cuprates suggest that these oxides are locally distorted due to a strong electron-lattice interaction, and charge carriers organize themselves most likely into a tweed-like state. Measurements by inelastic neutron scattering as well as calculations on the Hubbard model show that the electron-lattice interaction is strongest at the zone boundaries, enhanced by phonon-induced spin-correlations. Such a strong electron-lattice interaction must be the origin of these local distortions, and may form the basis for the microscopic mechanism of superconductivity.

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页码：791 / 800

页数：10

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