PHONON DENSITY OF STATES IN YBA2CU3OX

被引：9

作者：

STROBEL, P

MONCEAU, P

THOLENCE, JL

CURRAT, R

DIANOUX, AJ

CAPPONI, JJ

BEDNORZ, JG

机构：

[1] CNRS, CTR RECH TRES BASSES TEMP, F-38042 GRENOBLE, FRANCE

[2] INST MAX VON LAUE PAUL LANGEVIN, F-38042 GRENOBLE, FRANCE

[3] IBM CORP, RES LAB, CH-8803 RUSCHLIKON, SWITZERLAND

来源：

PHYSICA C | 1988年 / 153卷 / 01期

关键词：

Ceramic Materials - Oxides;

D O I：

10.1016/0921-4534(88)90593-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the room-temperature phonon density of states for several compounds in the YBa2Cu3Ox family using inelastic neutron scattering. Substantial variations are observed as a function of oxygen concentration, across the entire frequency range (0-90 mev). Near the high frequency cut-off, the spectral weight of the distribution shifts upwards by approximately 10 Mev, between x = 7.0 and x = 6.0. This shift is tentatively ascribed to enhanced electron-phonon coupling in the superconducting compound. Our interpretation is substantiated by complementary data on a non-superconducting Co-doped sample.

引用

页码：282 / 283

页数：2

共 8 条

[1] DYNAMICS OF ATOMS IN THE HIGH-TEMPERATURE SUPERCONDUCTOR YBA2CU3O7-DELTA [J].

BRUESCH, P ;

BUHRER, W .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1988, 70 (01) :1-8

[2]

CHAPLOT SL, 1987, P SOLID STATE S BOMB

[3] PHONON DENSITY OF STATES OF THE YBA2CU3OY SUPERCONDUCTING CERAMICS [J].

MIHALY, L ;

ROSTA, L ;

CODDENS, G ;

MEZEI, F ;

HUTIRAY, G ;

KRIZA, G ;

KESZEI, B .

PHYSICAL REVIEW B, 1987, 36 (13) :7137-7140

[4] PHONON DENSITY OF STATES IN LA1.85SR0.15CUO4 [J].

RAMIREZ, AP ;

BATLOGG, B ;

AEPPLI, G ;

CAVA, RJ ;

RIETMAN, E ;

GOLDMAN, A ;

SHIRANE, G .

PHYSICAL REVIEW B, 1987, 35 (16) :8833-8836

[5] PHONON DENSITY-OF-STATES FOR THE HIGH-TC SUPERCONDUCTOR LA1.85SR0.15CUO4 AND ITS NONSUPERCONDUCTING REFERENCE LA2CUO4 [J].

RENKER, B ;

GOMPF, F ;

GERING, E ;

NUCKER, N ;

EWERT, D ;

REICHARDT, W ;

RIETSCHEL, H .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1987, 67 (01) :15-18

[6] PHONON DENSITY OF STATES OF SUPERCONDUCTING YBA2CU3O7 AND THE NONSUPERCONDUCTING ANALOG YBA2CU3O6 [J].

RHYNE, JJ ;

NEUMANN, DA ;

GOTAAS, JA ;

BEECH, F ;

TOTH, L ;

LAWRENCE, S ;

WOLF, S ;

OSOFSKY, M ;

GUBSER, DU .

PHYSICAL REVIEW B, 1987, 36 (04) :2294-2297

[7] INCOHERENT INELASTIC NEUTRON-SCATTERING STUDY OF THE LOW-FREQUENCY PHONONS IN SUPERCONDUCTING LA1.85SR0.15CUO4 AND ANTIFERROMAGNETIC LA2CUO4 [J].

ROSSEINSKY, MJ ;

PRASSIDES, K ;

DAY, P ;

DIANOUX, AJ .

PHYSICAL REVIEW B, 1988, 37 (04) :2231-2234

[8] CU-O VIBRATIONS OF BA2YCU3OX [J].

STAVOLA, M ;

KROL, DM ;

WEBER, W ;

SUNSHINE, SA ;

JAYARAMAN, A ;

KOUROUKLIS, GA ;

CAVA, RJ ;

RIETMAN, EA .

PHYSICAL REVIEW B, 1987, 36 (01) :850-853

← 1 →