PHONON RENORMALIZATION AND GAP ANISOTROPY

被引：4

作者：

BILL, A

HIZHNYAKOV, V

SIGMUND, E

机构：

[1] UNIV STUTTGART,INST THEORET PHYS 3,D-70550 STUTTGART,GERMANY

[2] ESTONIAN ACAD SCI,INST PHYS,TARTU,ESTONIA

来源：

PHYSICA C | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)92289-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a method for the calculation of the renormalization of the phonon energy in the superconducting state. The expression is derived in the weak coupling case and takes into account the k-dependency of the order parameter Delta(k). For the high-T-c superconductors the influence of the gap anisotropy in the ab plane on the renormalization of the q --> 0 phonon energies is studied.

引用

页码：2137 / 2138

页数：2

共 6 条

[1] BILL A, 1994, P WORKSHOP PHASE SEP
[2] DEUTSCHER G, 1994, P WORKSHOP PHASE SEP
[3] PHONON ANOMALIES AND RANGE OF SUPERCONDUCTING ENERGY GAPS FROM INFRARED STUDIES OF YBA2CU3O7-DELTA
GENZEL, L
WITTLIN, A
BAUER, M
CARDONA, M
SCHONHERR, E
SIMON, A
[J]. PHYSICAL REVIEW B, 1989, 40 (04): : 2170 - 2178
[4] UNTWINNED SINGLE-CRYSTALS OF YBA2CU3O7-DELTA - AN OPTICAL INVESTIGATION OF THE A-B ANISOTROPY
THOMSEN, C
CARDONA, M
GEGENHEIMER, B
LIU, R
SIMON, A
[J]. PHYSICAL REVIEW B, 1988, 37 (16): : 9860 - 9863
[5] EXPERIMENTAL-DETERMINATION OF THE SUPERCONDUCTING PAIRING STATE IN YBCO FROM THE PHASE COHERENCE OF YBCO-PB DC SQUIDS
WOLLMAN, DA
VANHARLINGEN, DJ
LEE, WC
GINSBERG, DM
LEGGETT, AJ
[J]. PHYSICAL REVIEW LETTERS, 1993, 71 (13) : 2134 - 2137
[6] SUPERCONDUCTIVITY-INDUCED PHONON SELF-ENERGY EFFECTS IN HIGH-TC SUPERCONDUCTORS
ZEYHER, R
ZWICKNAGL, G
[J]. ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1990, 78 (02): : 175 - 190

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