Uncommon Magnetism in Rare-Earth Intermetallic Compounds with Strong Electronic Correlations

被引:3
|
作者
Savchenkov, Pavel S. [1 ,2 ]
Alekseev, Pavel A. [1 ,2 ]
机构
[1] Kurchatov Inst, Natl Res Ctr, Moscow 123182, Russia
[2] Natl Res Nucl Univ MEPhI, Inst Laser & Plasma Technol, Moscow 115409, Russia
关键词
intermediate valence; long-range magnetic order; crystalline electric field; induced magnetism; neutron spectroscopy; GROUND-STATE SYSTEMS; INTERMEDIATE-VALENCE; NEUTRON-SCATTERING; TEMPERATURE-DEPENDENCE; PHASE-TRANSITION; SPIN DYNAMICS; SOFT-MODE; PR3; TL; FLUCTUATIONS; SPECTROSCOPY;
D O I
10.3390/cryst13081238
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
Rare-earth intermetallic compounds are characterised by the presence of a long-range magnetic order due to the interaction of local magnetic moments periodically located within the crystal lattice. This paper considers the possibility of forming an ordered state in cases where there is no opportunity to observe the local moment of the f-electronic shell in a traditional sense. These are, first of all, systems with a singlet ground state, as well as systems with fast spin fluctuations caused by a homogeneous intermediate-valence state of a rare-earth ion. Extensive experimental studies of these effects using neutron diffraction, neutron spectroscopy, and high-pressure studies of the magnetic phase diagram are presented and analysed, and the corresponding microscopic model representations are discussed. In particular, the possible origin of long-range magnetic order in mixed-valence compounds is analysed.
引用
收藏
页数:19
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