INFRARED REFLECTIVITY STUDIES OF CERAMIC YBA2CU4O8

被引：6

作者：

BUCKLEY, RG ^{[1
]}

STAINES, MP ^{[1
]}

HAINES, EM ^{[1
]}

ZIAEI, M ^{[1
]}

CLAYMAN, BP ^{[1
]}

机构：

[1] SIMON FRASER UNIV, DEPT PHYS, BURNABY, BC V5A 1S6, CANADA

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)91843-0

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Temperature-dependent infrared reflectivity of ceramic samples of YBa2Cu4O8 and substituted YBa2Cu4O8 are presented. Substitutions include rare earth ions for Y, and part substitutions of Zn for Cu, Ca for Y and La for Ba. It is observed that the phonon near 300 cm(-1) softens as the temperature is lowered and that the softening begins well above T-c. The magnitude of the softening and the softening onset temperature change with T-c reflecting a dependence on the hole concentration.

引用

页码：1237 / 1238

页数：2

共 12 条

[1] Y-89 NMR EVIDENCE FOR A FERMI-LIQUID BEHAVIOR IN YBA2CU3O6+X
ALLOUL, H
OHNO, T
MENDELS, P
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (16) : 1700 - 1703
[2] INFRARED STUDY OF RBA2CU4O8 (R=Y, ER, DY, GD)
BUCKLEY, RG
ZIAEI, M
CLAYMAN, BP
HAINES, EM
[J]. PHYSICAL REVIEW B, 1994, 49 (18): : 13175 - 13183
[3] HASTREITER G, 1994, SOLID STATE COMMUN, V76, P101
[4] PHONON ANOMALIES ABOVE T(C) IN YBA2CU4O8 AND YBA2CU3O7-DELTA SUPERCONDUCTORS - AN EFFECT OF COUPLING TO SPIN EXCITATIONS
LITVINCHUK, AP
THOMSEN, C
CARDONA, M
[J]. SOLID STATE COMMUNICATIONS, 1992, 83 (05) : 343 - 347
[5] LITVINCHUK AP, 1994, PHYSICAL PROPERTIES
[6] LORAM JW, IN PRESS PHYS REV B
[7] EFFECTS OF OXYGEN STOICHIOMETRY AND OXYGEN ORDERING IN BA2YCU3OY (6-LESS-THAN-OR-EQUAL-TO-Y-LESS-THAN-OR-EQUAL-TO-7)
NAKAZAWA, Y
ISHIKAWA, M
[J]. PHYSICA C, 1989, 158 (03): : 381 - 384
[8] ON THE EFFECT OF THE SUPERCONDUCTING PHASE-TRANSITION ON PHONONS IN YBA2CU4O8 - AN INFRARED SPECTROSCOPIC STUDY
OBHI, HS
SALJE, EKH
MIYATAKE, T
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1992, 4 (50) : 10367 - 10376
[9] NEUTRON-SCATTERING STUDY OF THE YBA2CU3O6+X SYSTEM
ROSSATMIGNOD, J
REGNAULT, LP
VETTIER, C
BOURGES, P
BURLET, P
BOSSY, J
HENRY, JY
LAPERTOT, G
[J]. PHYSICA C, 1991, 185 : 86 - 92
[10] 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

← 1 2 →