UNIAXIAL PRESSURE-DEPENDENCE OF T(C) FROM HIGH-RESOLUTION DILATOMETRY OF UNTWINNED LA2-XSRXCUO4 SINGLE-CRYSTALS

被引：79

作者：

GUGENBERGER, F

MEINGAST, C

ROTH, G

GRUBE, K

BREIT, V

WEBER, T

WUHL, H

UCHIDA, S

NAKAMURA, Y

机构：

[1] KERNFORSCHUNGSZENTRUM KARLSRUHE, INST TECH PHYS, D-76021 KARLSRUHE, GERMANY

[2] UNIV TOKYO, SUPERCOND RES COURSE, BUNKYO KU, TOKYO 113, JAPAN

[3] UNIV TOKYO, DEPT APPL PHYS, BUNKYO KU, TOKYO 113, JAPAN

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.49.13137

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have carried out high-resolution dilatometry experiments on a series of high-quality single crystals of La2-xSrCuO4 with various Sr content on both the under- and overdoped side of the T(c)(x) phase diagram. A simple in situ technique was applied to prevent the usual twinning of the samples in the low-temperature orthorhombic (LTO) phase, which allows us to study the full anisotropy of the thermal expansion of the LTO phase. From the anomalies in the linear expansivities DELTAalpha(i) (i=a,b,c) at T(c) we deduce all three uniaxial stress (dT(c)/dp(i)) and strain (dT(c)/depsilon(i)) dependences, which turn out to be large and almost cancel for hydrostatic pressure.

引用

页码：13137 / 13142

页数：6

共 38 条

[11]

LANG M, 1994, PHYS REV LETT, V49, P4163

[12] THEORY OF EFFECT OF UNIAXIAL-STRESS ON T(C) IN YBA2CU3O7 [J].

LI, QP .

PHYSICA C, 1993, 209 (04) :513-515

[13]

LORAM JW, 1990, SPRINGER SERIES SOLI, V99, P92

[14] LARGE A-B ANISOTROPY OF THE EXPANSIVITY ANOMALY AT TC IN UNTWINNED YBA2CU3O7-DELTA [J].

MEINGAST, C ;

KRAUT, O ;

WOLF, T ;

WUHL, H ;

ERB, A ;

MULLERVOGT, G .

PHYSICAL REVIEW LETTERS, 1991, 67 (12) :1634-1637

[15] UNIAXIAL PRESSURE-DEPENDENCE OF T(C) OF SINGLE-CRYSTALLINE YBA2CU4O8 VIA THERMAL-EXPANSION [J].

MEINGAST, C ;

KARPINSKI, J ;

JILEK, E ;

KALDIS, E .

PHYSICA C, 1993, 209 (04) :591-596

[16] ANISOTROPIC PRESSURE-DEPENDENCE OF TC IN SINGLE-CRYSTAL YBA2CU3O7 VIA THERMAL-EXPANSION [J].

MEINGAST, C ;

BLANK, B ;

BURKLE, H ;

OBST, B ;

WOLF, T ;

WUHL, H ;

SELVAMANICKAM, V ;

SALAMA, K .

PHYSICAL REVIEW B, 1990, 41 (16) :11299-11304

[17]

MEINGAST C, UNPUB

[18] RESONANT ULTRASOUND SPECTROSCOPIC TECHNIQUES FOR MEASUREMENT OF THE ELASTIC-MODULI OF SOLIDS [J].

MIGLIORI, A ;

SARRAO, JL ;

VISSCHER, WM ;

BELL, TM ;

LEI, M ;

FISK, Z ;

LEISURE, RG .

PHYSICA B-CONDENSED MATTER, 1993, 183 (1-2) :1-24

[19] SUPERCONDUCTING PROPERTIES OF LA2-XBAXCUO4 [J].

MOODENBAUGH, AR ;

XU, YW ;

SUENAGA, M ;

FOLKERTS, TJ ;

SHELTON, RN .

PHYSICAL REVIEW B, 1988, 38 (07) :4596-4600

[20] UNIAXIAL-STRESS EFFECT ON THE SUPERCONDUCTIVITY OF GRAIN-ALIGNED COMPOSITES OF LA2-XSRXCUO4 [J].

MOTOI, Y ;

FUJIMOTO, K ;

UWE, H ;

SAKUDO, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1991, 60 (02) :384-386

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