CORRELATION BETWEEN THE RHOMBIC DISTORTION OF THE CUO4 BASAL-PLANE AND TC IN LA1.6-XND0.4SRXCUO4

被引：6

作者：

KOBAYASHI, A ^{[1
]}

KOIKE, Y ^{[1
]}

KATANO, S ^{[1
]}

FUNAHASHI, S ^{[1
]}

KAJITANI, T ^{[1
]}

KAWAGUCHI, T ^{[1
]}

KATO, M ^{[1
]}

NOJI, T ^{[1
]}

SAITO, Y ^{[1
]}

机构：

[1] JAERI,TOKAI RES ESTAB,DEPT MAT SCI & ENGN,TOKAI,IBARAKI 31911,JAPAN

来源：

PHYSICA B | 1994年 / 194卷

关键词：

D O I：

10.1016/0921-4526(94)91472-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The rhombic distortion of the CuO4 basal plane in the tetragonal-low-temperature (TLT) phase (P42/ncm) of La1.6-xNd0.4d0.4SrxCuO4 has been investigated from high-resolution powder neutron diffraction at 10 K. It has been found that the rhombic distortion reaches a maximum at x = 0.115 in the TLT phase of 0.10 less-than-or-equal-to x 5 less-than-or-equal-to 0.25. This correlates very much with the result that the local minimum of Tc as a function of x appears at x = 0.115. It is concluded that the suppression of superconductivity in the TLT phase depends not on the structural-phase-transition-temperature T(d2) to the TLT phase but on the magnitude of the rhombic distortion of the CuO4 basal plane.

引用

页码：1945 / 1946

页数：2

共 4 条

[1] A NEW STRUCTURAL MODIFICATION OF SUPERCONDUCTING LA2-XMXCUO4 [J].

AXE, JD ;

COX, DE ;

MOHANTY, K ;

MOUDDEN, H ;

MOODENBAUGH, AR ;

XU, Y ;

THURSTON, TR .

IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 1989, 33 (03) :382-388

[2] LATTICE INSTABILITIES AND THE EFFECT OF COPPER-OXYGEN-SHEET DISTORTIONS ON SUPERCONDUCTIVITY IN DOPED LA2CUO4 [J].

CRAWFORD, MK ;

HARLOW, RL ;

MCCARRON, EM ;

FARNETH, WE ;

AXE, JD ;

CHOU, H ;

HUANG, Q .

PHYSICAL REVIEW B, 1991, 44 (14) :7749-7752

[3] ANOMALOUS X DEPENDENCE OF TC AND POSSIBILITY OF LOW-TEMPERATURE STRUCTURAL PHASE-TRANSITION IN LA2-XSRXCU0.99M0.01O4(M=NI,ZN,GA) [J].

KOIKE, Y ;

KOBAYASHI, A ;

KAWAGUCHI, T ;

KATO, M ;

NOJI, T ;

ONO, Y ;

HIKITA, T ;

SAITO, Y .

SOLID STATE COMMUNICATIONS, 1992, 82 (11) :889-893

[4] LATTICE INSTABILITIES, ISOTOPE EFFECT, AND HIGH-TC SUPERCONDUCTIVITY IN LA2-XBAXCUO4 [J].

PICKETT, WE ;

COHEN, RE ;

KRAKAUER, H .

PHYSICAL REVIEW LETTERS, 1991, 67 (02) :228-231

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