NEUTRON SPECTROSCOPY STUDIES OF THE CRYSTAL-FIELD INTERACTION IN RET(4)AL(8) COMPOUNDS (RE=TB, HO OR ER - T=MN, FE OR CU)

被引：19
|
作者：
CACIUFFO, R
AMORETTI, G
BUSCHOW, KHJ
MOZE, O
MURANI, AP
PACI, B
机构：
[1] UNIV PARMA,DIPARTIMENTO FIS,VIALE SCI,I-43100 PARMA,ITALY
[2] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE
[3] UNIV AMSTERDAM,VAN DER WAALS ZEEMAN LAB,1018 XE AMSTERDAM,NETHERLANDS
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1995年 / 7卷 / 41期
关键词：
D O I：
10.1088/0953-8984/7/41/007
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Inelastic neutron scattering experiments have been performed on some members of the tetragonal RET(4)Al(8) series of compounds (RE = Tb, Ho or Er; T = Mn,: Fe or Cu) in order to determine the crystal-field potential at the RE site. A consistent set of the crystal-field parameters has been obtained from the experimental data by a least-squares Bt procedure, using information on the second-order term deduced from Mossbauer spectroscopy measurements in (GdT4Al8)-Gd-155. The results obtained have been used to estimate the rare-earth contribution to the magnetic anisotropy constants and to discuss the characteristics of possible spin reorientation processes.
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收藏
页码：7981 / 7989
页数：9
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