SYNTHESIS, TRANSPORT, AND MAGNETIC-PROPERTIES OF LN2-XCEXCUO4-Y SINGLE-CRYSTALS (LN = ND, PR, SM)

被引：15

作者：

DALICHAOUCH, Y

DEANDRADE, MC

MAPLE, MB

机构：

[1] UNIV CALIF SAN DIEGO,INST PURE & APPL PHYS SCI,LA JOLLA,CA 92093

[2] LOS ALAMOS NATL LAB,CTR MAT SCI,LOS ALAMOS,NM 87545

来源：

PHYSICA C | 1993年 / 218卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(93)90296-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Single Crystals Ln2-xCexCuO4-y (Ln = Nd, Pr, Sm; 0 less-than-or-equal-to x less-than-or-equal-to 0.2) were grown in CuO flux and characterized by means of X-ray diffraction and microprobe analyses, electrical resistivity, and magnetic susceptibility. There is a large variation of the Ce content from crystal to crystal within a given batch and the distribution width decreases with increasing Ce starting composition. The temperature dependence of the normal-state electrical resistivity and the resistively determined superconducting critical temperature T(c) are very sensitive to the heat treatment. The magnetic susceptibility of Ln2-xCexCuO4-y Single crystals, MeasUred for two orientations of the crystals with respect to the applied field H, reveals a high anisotropy and indicates the presence of crystalline electric-field (CEF) effects.

引用

页码：309 / 315

页数：7

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