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 [J].

COLLINS, RT ;

SCHLESINGER, Z ;

HOLTZBERG, F ;

FEILD, C .

PHYSICAL REVIEW LETTERS, 1989, 63 (04) :422-425

[3] PROPERTIES OF OPTICAL-FEATURES IN YBA2CU3O7-DELTA [J].

COOPER, SL ;

THOMAS, GA ;

ORENSTEIN, J ;

RAPKINE, DH ;

CAPIZZI, M ;

TIMUSK, T ;

MILLIS, AJ ;

SCHNEEMEYER, LF ;

WASZCZAK, JV .

PHYSICAL REVIEW B, 1989, 40 (16) :11358-11361

[4] RAMAN-SCATTERING FROM SUPERCONDUCTING GAP EXCITATIONS IN SINGLE-CRYSTAL YBA2CU3O7-DELTA [J].

COOPER, SL ;

KLEIN, MV ;

PAZOL, BG ;

RICE, JP ;

GINSBERG, DM .

PHYSICAL REVIEW B, 1988, 37 (10) :5920-5923

[5] FAR-INFRARED ABSORPTION IN SUPERCONDUCTING AND NORMAL LEAD [J].

DREW, HD ;

SIEVERS, AJ .

PHYSICAL REVIEW LETTERS, 1967, 19 (12) :697-&

[6] LATTICE-VIBRATIONS IN HIGH-TC SUPERCONDUCTORS - OPTICAL SPECTROSCOPY AND LATTICE-DYNAMICS [J].

FEILE, R .

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 [J].

GURVITCH, M ;

VALLES, JM ;

CUCOLO, AM ;

DYNES, RC ;

GARNO, JP ;

SCHNEEMEYER, LF ;

WASZCZAK, JV .

PHYSICAL REVIEW LETTERS, 1989, 63 (09) :1008-1011

[9] MAGNETIC PENETRATION DEPTH IN SINGLE-CRYSTAL YBA2CU3O7-DELTA [J].

HARSHMAN, DR ;

SCHNEEMEYER, LF ;

WASZCZAK, JV ;

AEPPLI, G ;

CAVA, RJ ;

BATLOGG, B ;

RUPP, LW ;

ANSALDO, EJ ;

WILLIAMS, DL .

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 [J].

IMER, JM ;

PATTHEY, F ;

DARDEL, B ;

SCHNEIDER, WD ;

BAER, Y ;

PETROFF, Y ;

ZETTL, A .

PHYSICAL REVIEW LETTERS, 1989, 62 (03) :336-339

← 1 2 3 →