Magnetic ordering within the layered terbium carbide iodide, Tb2C2I2

被引：4

作者：

Ahn, K

Gibson, BJ

Kremer, RK

Mattausch, H

Keller, L

Simon, A

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[2] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2001年 / 323卷

关键词：

Tb2C2I2; magnetically ordered materials; neutron diffraction; phase transition; rare-earth metal carbide halide;

D O I：

10.1016/S0925-8388(01)01096-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The compound Tb2C2I2 crystallizes with a layered structure (space group = C2/m), which has a close-packed arrangement of I-Tb-Tb-I slabs. C-2 units are located within the To octahedral voids. Powder magnetic susceptibility measurements suggest two antiferromagnetic ordering transitions below 90 K. From the refinement of neutron powder diffraction patterns, the Tb moments order with a propagation vector k = (0,0,0). The refined Tb moments are 8.0(1) mu (B) at 10 K, and they an aligned anitferromagnetically in the ac plane. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：400 / 403

页数：4

共 7 条

[1] The layered lanthanum carbide halide superconductors La2C2(X,X′)2 (X,X′ = Cl, Br, I):: Neutron powder diffraction characterization and electronic properties [J].

Ahn, K ;

Gibson, BJ ;

Kremer, RK ;

Mattausch, H ;

Stolovits, A ;

Simon, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (26) :5446-5453

[2]

Carvajal J. R., 1990, SAT M POWD DIFFR 15, P127

[3]

GIBSON BJ, UNPUB

[4] 3S-GD2C2BR2 - AN ISOMORPH WITH A NEW STACKING-SEQUENCE [J].

MATTAUSCH, H ;

KREMER, RK ;

EGER, R ;

SIMON, A .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1992, 609 (03) :7-11

[5]

SCHWANITZSCHULLER U, 1985, Z NATURFORSCH B, V40, P710

[6] Superconductivity in rare earth metal carbide halides of the type SE(2)X(2)C(2) [J].

Simon, A ;

Yoshiasa, A ;

Backer, M ;

Henn, RW ;

Felser, C ;

Kremer, RK ;

Mattausch, H .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1996, 622 (01) :123-137

[7]

Simon A, 1997, ANGEW CHEM INT EDIT, V36, P1789

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