The intersublattice exchange interactions in the R2Co7B3 compounds (R equals heavy rare earth)

被引：5
|
作者：
Kowalczyk, A
机构：
[1] Institute of Molecular Physics, Polish Academy of Sciences, 60-179 Poznan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1997年 / 171卷 / 1-2期
关键词：
intermetallic compounds; structural properties; R-Co exchange coupling;
D O I：
10.1016/S0304-8853(97)00023-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The experimental values of Curie temperatures of hexagonal R2Co7B3 (R = heavy rare earth) compounds are used to calculate the effective intersublattice exchange interactions, J(RCo), between R and Co sublattices. A mean field approximation is used. The compounds belong to the Rn+1Co3n+5B2n family. The R2Co7B3 is a combination of CaCu5 and CeCo3B2-type structures. The J(RCo) has a tendency to decrease with increasing atomic number of the rare earth partner. A similar tendency has been found for other Fe and Co-based compounds.
引用
收藏
页码：113 / 118
页数：6
相关论文
共 50 条
  • [21] EXCHANGE INTERACTIONS AND HYPERFINE FIELD AT THE RARE-EARTH NUCLEI IN R2FE14B COMPOUNDS
    BERTHIER, Y
    BOGE, M
    CZJZEK, G
    GIVORD, D
    JEANDEY, C
    LI, HS
    ODDOU, JL
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1986, 54-7 (pt I) : 589 - 590
  • [22] Magnetism and superconductivity in RNi2B2C compounds (R equals rare-earth and Y)
    Cadogan, JM
    AUSTRALIAN JOURNAL OF PHYSICS, 1997, 50 (06): : 1103 - 1117
  • [23] Exchange interactions in R-Co-B (R=Y, Sm and Gd) compounds
    Maruyama, F
    JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 320 (01) : 7 - 12
  • [24] Magnetic properties of R(2)CoGa(3) (R=rare earth) compounds
    Routsi, CD
    Yakinthos, JK
    Garnier, A
    Gignoux, D
    Lionti, F
    Schmitt, D
    JOURNAL OF ALLOYS AND COMPOUNDS, 1996, 240 (1-2) : 151 - 155
  • [25] Crystal electric field splitting of R3+-ions in RNi2B2C (R equals rare earth)
    Gasser, U
    Allenspach, P
    Mesot, J
    Furrer, A
    PHYSICA C, 1997, 282 : 1327 - 1328
  • [26] Preparation and properties of new rare-earth perovskites R(Mn0.5B0.5)O-3 (R equals rare-earth ion; B=Co, Ni)
    Troyanchuk, IO
    Szymczak, H
    Samsonenko, NV
    Nabialek, A
    INORGANIC MATERIALS, 1997, 33 (08) : 857 - 859
  • [27] Magnetic properties of RCo3B2 (R = rare earth) compounds
    Ido, H
    Nashima, O
    Ito, T
    Kaneda, T
    Saito, Y
    Konno, K
    Yoshida, H
    Motokawa, M
    JOURNAL OF APPLIED PHYSICS, 1999, 85 (08) : 4865 - 4867
  • [28] Magnetic properties of RCo3B2 (R = rare earth) compounds
    J Appl Phys, 8 pt 2A (4865):
  • [29] PHOTOINDUCED HYDRIDE FORMATION IN RARE-EARTH-CO (R2CO7) INTERMETALLIC COMPOUNDS
    IMAMURA, H
    FUJIWARA, K
    TSUCHIYA, S
    JOURNAL OF THE LESS-COMMON METALS, 1987, 134 (01): : L1 - L3
  • [30] Magnetic properties and electronic structures of R-Ni-B compounds where R is a heavy rare earth
    Burzo, E.
    Bucur, N.
    Chioncel, L.
    Rednic, V.
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2008, 20 (27)
12345