ULTRASONIC STUDY OF THE SOFT PHONON MODE IN BI2SR2CA1CU2O8 SINGLE-CRYSTALS

被引：17

作者：

WU, J ^{[1
]}

WANG, YN ^{[1
]}

SHEN, HM ^{[1
]}

ZHU, JS ^{[1
]}

YAN, YF ^{[1
]}

ZHAO, ZX ^{[1
]}

机构：

[1] CHINESE ACAD SCI, INST PHYS, BEIJING 100080, PEOPLES R CHINA

来源：

PHYSICS LETTERS A | 1990年 / 148卷 / 1-2期

关键词：

D O I：

10.1016/0375-9601(90)90591-B

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ultrasonic measurements on Bi2Sr2Ca1Cu2O8 single crystals have been carried out. The in-plane shear moduli C66 and C' = 1 2[ 1 2(C11+C22)-C12] were derived from the sound velocity data. It was found that the C' mode showed an overall trend of softening over a wide temperature range above Tc and the C66 mode exhibited three obvious softening minima around 240-250, 150 and 100 K. Implications of these results for a possible structural change are discussed. © 1990.

引用

页码：127 / 130

页数：4

共 37 条

[1] AN ULTRASONIC STUDY OF THE ELASTIC PROPERTIES OF THE NORMAL AND SUPERCONDUCTING STATES OF YBA2CU3O7-DELTA [J].

ALMOND, DP ;

LAMBSON, E ;

SAUNDERS, GA ;

WANG, H .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1987, 17 (09) :L221-L224

[2]

[Anonymous], COMMUNICATION

[3] ANOMALOUS ULTRASOUND PROPAGATION IN HIGH-TC SUPERCONDUCTORS - LA1.8SR0.2CUO4-Y AND YBA2CU3O7-DELTA [J].

BHATTACHARYA, S ;

HIGGINS, MJ ;

JOHNSTON, DC ;

JACOBSON, AJ ;

STOKES, JP ;

LEWANDOWSKI, JT ;

GOSHORN, DP .

PHYSICAL REVIEW B, 1988, 37 (10) :5901-5904

[4] ULTRASOUND STUDIES OF THE HIGH-TC SUPERCONDUCTOR LA1.85SR0.15CUO4 [J].

BISHOP, DJ ;

GAMMEL, PL ;

RAMIREZ, AP ;

CAVA, RJ ;

BATLOGG, B ;

RIETMAN, EA .

PHYSICAL REVIEW B, 1987, 35 (16) :8788-8790

[5]

BISHOP DJ, 1988, B AM PHYS SOC, V33, P606

[6] ELASTICITY STUDIES OF LA2-XSRXCUO4 [J].

BOURNE, LC ;

ZETTL, A ;

CHANG, KJ ;

COHEN, ML ;

STACY, AM ;

HAM, WK .

PHYSICAL REVIEW B, 1987, 35 (16) :8785-8787

[7] TEMPERATURE-DEPENDENCE OF THE RAMAN-SPECTRA FOR BI2CASR2CU2O8 [J].

BURNS, G ;

CHANDRASHEKHAR, GV ;

DACOL, FH ;

STROBEL, P .

PHYSICAL REVIEW B, 1989, 39 (01) :775-776

[8] PHASE-TRANSFORMATION AT 240-K IN YBA2CU3O7-X BY MEASUREMENTS OF ELASTIC ENERGY-DISSIPATION AND MODULUS AND ITS POSSIBLE RELATION WITH THE ENHANCEMENT OF TC ABOVE 100-K [J].

CANNELLI, G ;

CANTELLI, R ;

CORDERO, F ;

COSTA, GA ;

FERRETTI, M ;

OLCESE, GL .

EUROPHYSICS LETTERS, 1988, 6 (03) :271-276

[9]

Cao Z. S., 1989, Modern Physics Letters B, V3, P79, DOI 10.1142/S0217984989000145

[10]

Chu X., 1988, Modern Physics Letters B, V2, P985, DOI 10.1142/S0217984988000795

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