SYNTHESIS, CHARACTERIZATION AND PHYSICAL-PROPERTIES OF INCOMMENSURATE LAYERED COMPOUNDS (RES)XTAS2 (RE=RARE EARTH METAL)

被引：35

作者：

SUZUKI, K ^{[1
]}

ENOKI, T ^{[1
]}

IMAEDA, K ^{[1
]}

机构：

[1] INST MOLEC SCI,OKAZAKI,AICHI 444,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1991年 / 78卷 / 02期

关键词：

D O I：

10.1016/0038-1098(91)90256-U

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Structures and physical properties have been investigated for a series of new ternary sulfides (RES)(x)TaS2 (RE = Pr, Sm, Nd, Gd, Dy and Er) with an incommensurate RES-TaS2 stacking structure. The lattice constants decrease monotonically with increasing the atomic number of rare earths, indicating that RE is trivalent in these compounds. An antiferromagnetic transition is found in (GdS)1.20TaS2 and (DyS)1.22TaS2 with Neel temperatures of 4.1 and 1.7K, respectively, which are strongly depressed in comparison with those of corresponding rare earth monosulfide. (SmS)1.19 TaS2 exhibits weak magnetic behavior indicating the divalent state of Sm, though trivalence is expected from the lattice constant.

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页码：73 / 77

页数：5

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