Phonon softening and MIR absorption in superconducting Bi1.7Pb0.3Sr2Ca2Cu3O10+x

被引：3
作者：
Zhigadlo, ND
Zhang, M
Salje, EKH
机构：
[1] UNIV CAMBRIDGE, DEPT EARTH SCI, CAMBRIDGE CB2 3EQ, ENGLAND
[2] UNIV CAMBRIDGE, IRC SUPERCONDUCT, CAMBRIDGE CB3 OHE, ENGLAND
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1997年 / 10卷 / 04期
关键词：
D O I：
10.1088/0953-2048/10/4/005
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The temperature evolution of the far-infrared (FIR) and mid-infrared (MIR) absorption spectra of Bi1.7Pb0.3Sr2Ca2Cu3O10+x (2223 phase) superconductors show a large softening of phonon frequencies in the superconducting phase (Delta omega/omega approximate to 7 x 10(-3)). The of the softening is at 130 K which is well above the superconducting transition temperature at 106 K. A change of the MIR absorption near T-c is reported and compared with earlier observations in YBa2Cu3O7.
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收藏
页码：209 / 212
页数：4
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