NEUTRON STUDY OF THE MAGNETIC CORRELATIONS IN AMORPHOUS ERCO2 .1. EVIDENCE FOR CORRELATIONS BETWEEN LOCAL EASY-MAGNETIZATION DIRECTIONS USING NEUTRON POLARIZATION ANALYSIS

被引:27
作者
BOUCHER, B
LIENARD, A
REBOUILLAT, JP
SCHWEIZER, J
机构
[1] CNRS,LOUIS NEEL LAB,F-38042 GRENOBLE,FRANCE
[2] CEN,CEA,F-38041 GRENOBLE,FRANCE
来源
JOURNAL OF PHYSICS F-METAL PHYSICS | 1979年 / 9卷 / 07期
关键词
D O I
10.1088/0305-4608/9/7/021
中图分类号
O59 [应用物理学];
学科分类号
摘要
Amorphous ErCo2 exhibits at low temperature a sperimagnetic structure: the cobalt moments are parallel, while the erbium moments are opposed but strongly connected to their local easy-magnetisation axes. The present study with polarised neutrons and polarisation analysis shows that there exists a correlation between the erbium magnetic components perpendicular to the cobalt magnetisation. Their arrangement is ferro- or antiferromagnetic, depending on the angle between the cobalt moments and the easy axes. There is evidence for correlation between the local easy-magnetisation axes which are not distributed at random. As a result, the existence of magnetic subdomains may be deduced. The correlation between erbium moments vanishes when the temperature increases and the anisotropy disappears.
引用
收藏
页码:1421 / 1431
页数:11
相关论文
共 15 条
  • [1] ARESSEBOGGIANO R, 1976, J PHYSIQUE, V37, P771
  • [2] BOUCHER B, 1979, J PHYS F, V9
  • [3] CARGILL GS, 1974, 18 AIP C P, P631
  • [4] AMORPHOUS METALLIC FILMS FOR BUBBLE DOMAIN APPLICATIONS
    CHAUDHARI, P
    CUOMO, JJ
    GAMBINO, RJ
    [J]. IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 1973, 17 (01) : 66 - 68
  • [5] ROLE OF STRUCTURE IN AMORPHOUS MAGNETIC-MATERIALS - DENSE RANDOM PACKING OF HARD SPHERES OF 2 SIZES
    COCHRANE, RW
    HARRIS, R
    PLISCHKE, M
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1974, 15 (02) : 239 - 249
  • [6] MAGNETIC-STRUCTURE OF AN AMORPHOUS RARE-EARTH TRANSITION-METAL ALLOY
    COEY, JMD
    CHAPPERT, J
    REBOUILLAT, JP
    WANG, TS
    [J]. PHYSICAL REVIEW LETTERS, 1976, 36 (17) : 1061 - 1064
  • [7] GIGNOUX D, 1973, THESIS U GRENOBLE
  • [8] NEW MODEL FOR AMORPHOUS MAGNETISM
    HARRIS, R
    PLISCHKE, M
    ZUCKERMANN, MJ
    [J]. PHYSICAL REVIEW LETTERS, 1973, 31 (03) : 160 - 162
  • [9] EFFECT OF NI SUBSTITUTION IN GD-CO AMORPHOUS THIN-FILMS
    MEYER, R
    JOUVE, H
    REBOUILLAT, JP
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1975, 11 (05) : 1335 - 1337
  • [10] POLARIZATION ANALYSIS OF THERMAL-NEUTRON SCATTERING
    MOON, RM
    RISTE, T
    KOEHLER, WC
    [J]. PHYSICAL REVIEW, 1969, 181 (02): : 920 - &