INFRARED ABSORPTIVITY OF YBA2CU3O7-X CRYSTALS

被引：27

作者：

PHAM, T

DREW, HD

MOSELEY, SH

LIU, JZ

机构：

[1] LAB PHYS SCI, COLLEGE PK, MD 20740 USA

[2] NASA, GODDARD SPACE FLIGHT CTR, GREENBELT, MD 20771 USA

[3] UNIV CALIF DAVIS, DEPT PHYS, DAVIS, CA 95616 USA

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.41.11681

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Measurements on twinned single crystals at 2 K show a smooth, approximately 2, absorptivity for frequencies between 80 and 400 cm-1. Analysis of the data with a simple model conductivity suggests a constant lossy conductivity contribution in the bulk superconductor. Superimposed on the 2 background are absorption features corresponding to optically active phonons, plus a broad feature (Af0.2%) near Latin small letter h with stroke=3.5kTc. This feature is discussed in terms of possible f3.5kTc gap excitations. © 1990 The American Physical Society.

引用

页码：11681 / 11684

页数：4

共 22 条

[1] [Anonymous], COMMUNICATION
[2] INFRARED EVIDENCE FOR GAP ANISOTROPY IN YBA2CU3O7
COLLINS, RT
SCHLESINGER, Z
HOLTZBERG, F
FEILD, C
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (04) : 422 - 425
[3] PROPERTIES OF OPTICAL-FEATURES IN YBA2CU3O7-DELTA
COOPER, SL
THOMAS, GA
ORENSTEIN, J
RAPKINE, DH
CAPIZZI, M
TIMUSK, T
MILLIS, AJ
SCHNEEMEYER, LF
WASZCZAK, JV
[J]. PHYSICAL REVIEW B, 1989, 40 (16): : 11358 - 11361
[4] RAMAN-SCATTERING FROM SUPERCONDUCTING GAP EXCITATIONS IN SINGLE-CRYSTAL YBA2CU3O7-DELTA
COOPER, SL
KLEIN, MV
PAZOL, BG
RICE, JP
GINSBERG, DM
[J]. PHYSICAL REVIEW B, 1988, 37 (10): : 5920 - 5923
[5] FAR-INFRARED ABSORPTION IN SUPERCONDUCTING AND NORMAL LEAD
DREW, HD
SIEVERS, AJ
[J]. PHYSICAL REVIEW LETTERS, 1967, 19 (12) : 697 - &
[6] LATTICE-VIBRATIONS IN HIGH-TC SUPERCONDUCTORS - OPTICAL SPECTROSCOPY AND LATTICE-DYNAMICS
FEILE, R
[J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1989, 159 (1-2): : 1 - 32
[7] GERSHENZON EM, 1987, JETP LETT, V48, P151
[8] REPRODUCIBLE TUNNELING DATA ON CHEMICALLY ETCHED SINGLE-CRYSTALS OF YBA2CU3O7
GURVITCH, M
VALLES, JM
CUCOLO, AM
DYNES, RC
GARNO, JP
SCHNEEMEYER, LF
WASZCZAK, JV
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (09) : 1008 - 1011
[9] MAGNETIC PENETRATION DEPTH IN SINGLE-CRYSTAL YBA2CU3O7-DELTA
HARSHMAN, DR
SCHNEEMEYER, LF
WASZCZAK, JV
AEPPLI, G
CAVA, RJ
BATLOGG, B
RUPP, LW
ANSALDO, EJ
WILLIAMS, DL
[J]. PHYSICAL REVIEW B, 1989, 39 (01): : 851 - 854
[10] HIGH-RESOLUTION PHOTOEMISSION-STUDY OF THE LOW-ENERGY EXCITATIONS REFLECTING THE SUPERCONDUCTING STATE OF BI-SR-CA-CU-O SINGLE-CRYSTALS
IMER, JM
PATTHEY, F
DARDEL, B
SCHNEIDER, WD
BAER, Y
PETROFF, Y
ZETTL, A
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (03) : 336 - 339

← 1 2 3 →