ANTIFERROMAGNETIC ORDER IN CA2CUO2CL2, SR2CUO2CL2 AND SR2CUO3+X

被引：6

作者：

HECHEL, D

FELNER, I

机构：

[1] Racah Institute of Physics, The Hebrew University

来源：

PHYSICA C | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)92026-5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetic order in the tetragonal M(2)CuO(2)Cl(2), M=Ca,Sr and in Sr2CuO3+x compounds was studied by using Mossbauer spectroscopy of 0.5% Fe-57-doped samples. These compounds crystallize in a K2NiF4 - type tetragonal structure, isostructural to La2-xSrxCuO4 superconductors. In this structure, one crystallographic site exists for copper atoms, which form CuO2 planes. Sr2CuO3 prepared under ambient pressure has an orthorhombic structure, while the tetragonal Sr2CuO3+x is obtained when prepared under high oxygen pressure. Both copperoxychlorides are antiferromagnetically ordered with T-N approximate to 260K, very similar to T-N in La2CuO4 or Nd2CuO4. The strontium-cuprates are magnetically ordered at 4.2K with T-N below 10K.

引用

页码：1601 / 1602

页数：2

共 6 条

[1] COMPETITION BETWEEN SUPERCONDUCTIVITY AND ANTIFERROMAGNETISM IN CU(2) LAYERS OF Y1-XPRXBA2CU3-YFEYOZ, Y1-XPRXBA2CU3-YCOYOZ, Y1-XPRXBA2CU3-YZNYOZ [J].

FELNER, I ;

NOWIK, I ;

BAUMINGER, ER ;

HECHEL, D ;

YARON, U .

PHYSICAL REVIEW LETTERS, 1990, 65 (15) :1945-1948

[2] MOSSBAUER STUDIES OF THE ANTIFERROMAGNETIC SR2CUCL2O2 AND CA0.85SR0.15CUO2 MATERIALS [J].

HECHEL, D ;

FELNER, I .

PHYSICA C, 1992, 201 (1-2) :75-79

[3] NEW LAYERED COPPER OXIDES CONTAINING DOUBLE CUO2 SHEETS - CA3CU2O4CL2 AND CA3CU2O4BR2 [J].

HUANG, J ;

HOFFMANN, RD ;

SLEIGHT, AW .

MATERIALS RESEARCH BULLETIN, 1990, 25 (09) :1085-1090

[4] SYNTHESIS, STRUCTURE, AND PROPERTIES OF SR2CUO2CL2 [J].

MILLER, LL ;

WANG, XL ;

WANG, SX ;

STASSIS, C ;

JOHNSTON, DC ;

FABER, J ;

LOONG, CK .

PHYSICAL REVIEW B, 1990, 41 (04) :1921-1925

[5] TEMPERATURE-DEPENDENCE OF FE HYPERFINE FIELD IN RBA2CU3OZ [J].

NOWIK, I ;

KAINDL, G ;

BAUMINGER, ER ;

FELNER, I ;

KOWITT, M ;

YARON, U .

SOLID STATE COMMUNICATIONS, 1990, 74 (09) :957-958

[6] ANTIFERROMAGNETISM IN SR2CUO2CL2 [J].

VAKNIN, D ;

SINHA, SK ;

STASSIS, C ;

MILLER, LL ;

JOHNSTON, DC .

PHYSICAL REVIEW B, 1990, 41 (04) :1926-1933

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