Crystal structure and magnetic properties of R3Mn0.5GeS7 (R = Y, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho and Er)

被引：21

作者：

Daszkiewicz, M. ^{[1
]}

Marchuk, O. V. ^{[2
]}

Gulay, L. D. ^{[3
]}

Kaczorowski, D. ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

[2] Eastern European Natl Univ, Dept Inorgan & Phys Chem, UA-43009 Lutsk, Ukraine

[3] Eastern European Natl Univ, Dept Ecol & Protect Environm, UA-43009 Lutsk, Ukraine

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 610卷

关键词：

Rare earth compounds; Chalcogenides; Crystal structures; X-ray single crystal diffraction; Magnetic properties;

D O I：

10.1016/j.jallcom.2014.04.222

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 crystal structures of quaternary R3Mn0.5GeS7 (R = Y, Ce, Pr, Nd, Sm, Gd,Tb, Dy, Ho and Er) compounds of La3Mn0.5SiS7 structure type (space group P6(3), Pearson symbol hP23) were determined by means of single crystal X-ray diffraction. The R atoms occupy trigonal prisms with two additional atoms, the Mn atoms are located in octahedra, while the Ge atoms are located in tetrahedra. Magnetic studies were performed on polycrystalline samples of Y3Mn0.5GeS7, Pr3Mn0.5GeS7 and Dy3Mn0.5GeS7. The former compound is a Curie-Weiss paramagnet due to magnetic moments carried on trivalent Mn ions. The other ones exhibit localized paramagnetic behavior due to both Mn3+ and R3+ sublattices. While the Dy-bearing sulfide orders antiferromagnetically below 5.5 K, no unambiguous indication of any magnetic ordering in Y3Mn0.5GeS7 and Pr3Mn0.5GeS7 was found down to 1.72 K. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：258 / 263

页数：6

共 7 条

[1]

[Anonymous], MULTIPURPOSE CRYSTAL

[2]

Gulay LD, 2011, HBK PHYS CHEM RARE, V41, P157, DOI 10.1016/S0168-1273(11)41003-5

[3]

MICHELET A, 1969, CR ACAD SCI C CHIM, V269, P1203

[4] Rare-earth transition-metal chalcogenides [J].

Mitchell, K ;

Ibers, JA .

CHEMICAL REVIEWS, 2002, 102 (06) :1929-1952

[5]

*OXF DIFFR, 2006, CRYSALIS CCD CRYSALI

[6] A short history of SHELX [J].

Sheldrick, George M. .

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2008, 64 :112-122

[7]

WIBERG N, 1995, LEHRBUCH ANORGANISCH

← 1 →