INVAR PROPERTIES IN THE RARE EARTH-3D TRANSITION-METAL ALLOYS

被引:32
作者
GIGNOUX, D
GIVORD, D
GIVORD, F
LEMAIRE, R
机构
[1] Laboratoire Louis Néel, CNRS, 38042 Grenoble Cédex
关键词
D O I
10.1016/0304-8853(79)90193-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The RCo2 and R2Fe17 compounds (R = rare earth) exhibit Invar-like thermal expansion anomalies below their ordering temperatures. These spontaneous volume magnetostrictions are discussed by considering their magnetic properties. In RCo2 compounds there is no intrisinc Co-moment is induced by the exchange and applied fields. The volume expansion anomaly is associated with the onset of the 3d magnetic moment. IN R2Fe17 compounds there is an intrisinc Fe- moment. Magnetic structures give evidence for positive and negative exchange interactions between Fe atoms which are strongly distance dependent. The thermal expansion anomaly is a result of this distance of the magnetic interactions. © 1979.
引用
收藏
页码:288 / 293
页数:6
相关论文
共 24 条
  • [1] Barbara B., 1973, International Journal of Magnetism, V4, P77
  • [2] METALLIC ALLOYS AND EXCHANGE-ENHANCED PARAMAGNETISM - APPLICATION TO RARE-EARTH-COBALT ALLOYS
    BLOCH, D
    LEMAIRE, R
    [J]. PHYSICAL REVIEW B, 1970, 2 (07): : 2648 - &
  • [3] 1ST ORDER TRANSITIONS IN ACO2 COMPOUNDS
    BLOCH, D
    EDWARDS, DM
    SHIMIZU, M
    VOIRON, J
    [J]. JOURNAL OF PHYSICS F-METAL PHYSICS, 1975, 5 (06): : 1217 - 1226
  • [4] PARAMAGNETIC BEHAVIOR OF SOME RARE-EARTH COBALT COMPOUNDS
    BURZO, E
    [J]. PHYSICAL REVIEW B-SOLID STATE, 1972, 6 (07): : 2882 - +
  • [5] BURZO E, 1971, Z ANGEW PHYSIK, V32, P127
  • [6] CYROT M, UNPUBLISHED
  • [7] DETERMINATION OF COBALT BEHAVIOR IN TMCO2 AND HOCO2 BY MEANS OF POLARIZED NEUTRON-DIFFRACTION
    GIGNOUX, D
    GIVORD, F
    KOEHLER, WC
    [J]. PHYSICA B & C, 1977, 86 (JAN-M): : 165 - 166
  • [8] POLARIZED NEUTRON STUDY OF HOCO2
    GIGNOUX, D
    GIVORD, F
    SCHWEIZER, J
    [J]. JOURNAL OF PHYSICS F-METAL PHYSICS, 1977, 7 (09): : 1823 - 1834
  • [9] FIELD-INDUCED MAGNETIC DENSITY IN PARAMAGNETIC COMPOUND LUCO2
    GIGNOUX, D
    GIVORD, F
    KOEHLER, WC
    MOON, RM
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1977, 5 (02) : 172 - 175
  • [10] GIGNOUX D, UNPUBLISHED