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

[1] STRUCTURAL PHASE-TRANSFORMATIONS AND SUPERCONDUCTIVITY IN LA2-XBAXCUO4 [J].

AXE, JD ;

MOUDDEN, AH ;

HOHLWEIN, D ;

COX, DE ;

MOHANTY, KM ;

MOODENBAUGH, AR ;

XU, YW .

PHYSICAL REVIEW LETTERS, 1989, 62 (23) :2751-2754

[2] COUPLING BETWEEN SUPERCONDUCTIVITY AND STRUCTURAL DEFORMATION IN LA2-XSRXCUO4 (X-SIMILAR-TO-0.13) [J].

BRADEN, M ;

HOFFELS, O ;

SCHNELLE, W ;

BUCHNER, B ;

HEGER, G ;

HENNION, B ;

TANAKA, I ;

KOJIMA, H .

PHYSICAL REVIEW B, 1993, 47 (18) :12288-12291

[3] COMPETITION BETWEEN STRUCTURAL AND SUPERCONDUCTING TRANSITION IN (LAND)-SR-CU-O [J].

BUCHNER, B ;

CRAMM, M ;

BRADEN, M ;

BRAUNISCH, W ;

HOFFELS, O ;

SCHNELLE, W ;

MULLER, R ;

FREIMUTH, A ;

SCHLABITZ, W ;

HEGER, G ;

KHOMSKII, DI ;

WOHLLEBEN, D .

EUROPHYSICS LETTERS, 1993, 21 (09) :953-958

[4] OUT-OF-PLANE ORBITAL CHARACTERS OF INTRINSIC AND DOPED HOLES IN LA2-XSRXCUO4 [J].

CHEN, CT ;

TJENG, LH ;

KWO, J ;

KAO, HL ;

RUDOLF, P ;

SETTE, F ;

FLEMING, RM .

PHYSICAL REVIEW LETTERS, 1992, 68 (16) :2543-2546

[5]

CHU CW, 1991, NATO ADV SCI I B-PHY, V286, P383

[6]

GIBBS EE, 1980, SOLID STATE COMMUN, V37, P33

[7]

GODDARD WA, 1991, SUSSP PROC, V39, P351

[8]

GUGENBERGER F, 1993, THESIS U KARLSRUHE

[9] PRESSURE-INDUCED CHARGE-TRANSFER AND DTC DP IN YBA2CU3O7-X [J].

JORGENSEN, JD ;

PEI, SY ;

LIGHTFOOT, P ;

HINKS, DG ;

VEAL, BW ;

DABROWSKI, B ;

PAULIKAS, AP ;

KLEB, R .

PHYSICA C, 1990, 171 (1-2) :93-102

[10] UNIAXIAL PRESSURE-DEPENDENCE OF TC OF UNTWINNED YBA2CU3OX SINGLE-CRYSTALS FOR X=6.5-7 [J].

KRAUT, O ;

MEINGAST, C ;

BRAUCHLE, G ;

CLAUS, H ;

ERB, A ;

MULLERVOGT, G ;

WUHL, H .

PHYSICA C, 1993, 205 (1-2) :139-146

← 1 2 3 4 →