Above Tc phonon renormalization in Bi1.7Pb0.3Sr2Ca2Cu3Ox: An infrared spectroscopic study

被引：0
作者：
Zhigadlo, ND
Zhang, M
Salje, EKH
机构：
[1] UNIV CAMBRIDGE, DEPT EARTH SCI, CAMBRIDGE CB2 3EQ, ENGLAND
[2] IRC SUPERCONDUCT, CAMBRIDGE CB3 0HE, ENGLAND
来源：
CZECHOSLOVAK JOURNAL OF PHYSICS | 1996年 / 46卷
关键词：
D O I：
10.1007/BF02562736
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The far infrared (FIR) and mid infared (MIR) absorption spectra of Bi1.7Pb0.3Sr2Ca2Cu3Ox superconductors were recoded in the spectral ranges 220-680 cm(-1) and 500-4000 cm(-1) at temperatures between 7 K and 300 K, respectively. The phonon signal near 598 cm(-1) showed a Lorentzian line profile and its temperature dependence could be analysed in great detail. When the sample was cooled, the frequency softening started well above the superconducting phase transition at 106 K. The overall energy shift was 4 cm(-1).
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页码：1243 / 1244
页数：2
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