EVIDENCE FOR A FANO-TYPE INTERACTION OF INFRARED ACTIVE PHONONS WITH ELECTRONIC EXCITATIONS IN TL2BA2CA2CU3O10

被引：8

作者：

BURLAKOV, VM

SHULGA, SV

KELLER, J

RENK, KF

机构：

[1] Fakultät für Physik, Universität Regensburg

来源：

PHYSICA C | 1992年 / 190卷 / 03期

关键词：

D O I：

10.1016/0921-4534(92)90611-F

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper we report evidence for a Fano-type interaction of infrared active phonons with electronic excitations in superconducting Tl2Ba2Ca2Cu3O10. We have analyzed the dielectric function obtained from reflectivity data of a polycrystalline sample. We take into account infrared active phonons, an infrared active electronic continuum, that we describe by an extended Drude model, and a resonance interaction between the electronic and phononic excitations. We found frequency shifts caused by the resonance interaction of several percent of the eigenfrequencies of the phonons.

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收藏

页码：304 / 308

页数：5

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