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Effect of high pressure on the phonon spectra of Bi2223 in Andreev junctions

 

作者: V. M. Svistunov,   V. B. Tarenkov,   A. I. D’yachenko,   R. Aoki,  

 

期刊: Low Temperature Physics  （AIP Available online 1997）
卷期: Volume 23, issue 11  

页码: 886-888

 

ISSN:1063-777X

 

年代: 1997

 

DOI:10.1063/1.593497

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A “softening” of the high-frequency modes of the phonon spectrum is detected under pressure. These modes correspond to breathing oxygen modes and to other vibrational modes of Cu–O. The obtained results explain the observed increase in the ratio2&Dgr;/kTcwithin the framework of the strong electron–phonon interaction model. ©1997 American Institute of Physics.

 

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