NMR spectroscopy of rare earth 3d transition metal alloys

被引：1
|
作者：
Kapusta, C [1 ]
机构：
[1] Stanislaw Staszic Univ Min & Met, Fac Phys & Nucl Tech, Dept Solid State Phys, PL-30059 Krakow, Poland
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 275卷
关键词：
hyperfine fields - magnetic; intermetallic compounds; magnetocrystalline anisotropy; NMR - spin echo; quadrupole interactions;
D O I：
10.1016/S0925-8388(98)00295-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Recent nuclear magnetic resonance studies of magnetically ordered rare earth-3d transition metal alloys are reviewed. Selected experimental results for rare earth NMR of RETM2 Laves phases as well as RE2TM14B and interstitially modified RE(2)TM(17)A(x) (A=N,C,H) materials for permanent magnet applications are surveyed. An analysis of the hyperfine parameters obtained from NMR experiments is presented and their relation to the physical properties of individual atomic sites is discussed. In particular, information from hyperfine fields about the influence of light interstitial atoms on the RE-TM magnetic coupling is analysed and compared to the results of magnetisation and neutron measurements. The relation of quadrupole splitting to the spectroscopic state of the rare earth, the magnetic structure and the individual site contributions to the magnetocrystalline anisotropy is analysed. The applicability of NMR to the study of multiphase magnetic materials for technology is briefly discussed. (C) 1998 Elsevier Science S.A.
引用
收藏
页码：161 / 169
页数：9
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