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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页码：7981 / 7989

页数：9

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