CRYSTAL-STRUCTURE AND MAGNETIC-PROPERTIES OF TERNARY RARE-EARTH COMPOUNDS OF THE TYPE RMNGA

被引：10

作者：

BRABERS, JHVJ ^{[1
]}

DEBOER, FR ^{[1
]}

BUSCHOW, KHJ ^{[1
]}

机构：

[1] PHILIPS RES LABS,5600 JA EINDHOVEN,NETHERLANDS

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1992年 / 179卷 / 1-2期

关键词：

D O I：

10.1016/0925-8388(92)90223-V

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 magnetic and crystallographic properties of RMnGa compounds were studied. The compounds with R = Ce, Pr and Nd crystallize in the cubic Laves phase structure (C15). The compounds with R = Gd, Tb, Dy and Ho adopt the hexagonal Fe2P structure. A structure determination was made for HoMnGa. From magnetic measurements it was derived that the magnetic ordering in these materials is fairly complex with a tendency to antiferromagnetism. In the high temperature regime, we observed Curie-Weiss behaviour with effective moments higher than expected for free trivalent R ions. This is taken as an indication of the existence of a moment on the manganese atoms.

引用

页码：227 / 233

页数：7

共 7 条

[1] REENTRANT FERROMAGNETISM OBSERVED IN SMMN2GE2 [J].

FUJII, H ;

OKAMOTO, T ;

SHIGEOKA, T ;

IWATA, N .

SOLID STATE COMMUNICATIONS, 1985, 53 (08) :715-717

[2] SYNTHESIS AND MAGNETIC-PROPERTIES OF GDCOSI AND GDMNSI [J].

KIDO, H ;

SHIMADA, M ;

KOIZUMI, M .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1982, 70 (01) :K23-K26

[3] ANTIFERROMAGNETISM OF YMN2 INTERMETALLIC COMPOUND [J].

NAKAMURA, Y ;

SHIGA, M ;

KAWANO, S .

PHYSICA B & C, 1983, 120 (1-3) :212-215

[4] A SPIN-GLASS STATE IN A NEWLY FOUND COMPOUND DYMNGA [J].

SAKURAI, J ;

INABA, K ;

TAGAWA, T ;

SCHWEIZER, J .

JOURNAL DE PHYSIQUE, 1988, 49 (C-8) :1081-1082

[5] NEW TERNARY COMPOUNDS - RMNGA (R-RARE EARTH METALS) AND THEIR SPIN GLASS-LIKE BEHAVIOR [J].

TAGAWA, Y ;

INABA, K ;

SAKURAI, J ;

KOMURA, Y .

SOLID STATE COMMUNICATIONS, 1988, 66 (09) :993-994

[6]

VILLARS P, 1985, PEARSONS HDB CRYSTAL, V1, P559

[7] STABILITY OF MN MOMENTS AND SPIN FLUCTUATIONS IN RMN2 (R-RARE EARTH) [J].

WADA, H ;

NAKAMURA, H ;

YOSHIMURA, K ;

SHIGA, M ;

NAKAMURA, Y .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1987, 70 (1-3) :134-136

← 1 →