INFRARED ACTIVE VIBRATIONAL-MODES STRONGLY COUPLED TO CARRIERS IN HIGH-T-C SUPERCONDUCTORS

被引：34

作者：

CALVANI, P ^{[1
]}

CAPIZZI, M ^{[1
]}

LUPI, S ^{[1
]}

BALESTRINO, G ^{[1
]}

机构：

[1] UNIV ROMA TOR VERGATA,DIPARTIMENTO INGN MECCAN,I-00173 ROME,ITALY

来源：

EUROPHYSICS LETTERS | 1995年 / 31卷 / 08期

关键词：

D O I：

10.1209/0295-5075/31/8/009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Infrared active vibrational modes (IRAV), similar to the extra-phonon absorption features which are likely to be responsible for polaron formation in insulating cuprates, have been detected in a metallic Bi2Sr2CuO6 film. The new modes can also be identified in the spectra of superconducting Nd2-xCexCuO4-y and YBa2Cu3O7-y. A comparison with tunnelling results confirms that such IRAV are strongly coupled to the charge carriers.

引用

页码：473 / 478

页数：6

共 19 条

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