金属间化合物
价(化学)
磁性
凝聚态物理
中子衍射
磁矩
相图
电子结构
基态
稀土
材料科学
晶体结构
物理
化学
相(物质)
结晶学
原子物理学
矿物学
复合材料
量子力学
合金
作者
P. S. Savchenkov,P. A. Alekseev
出处
期刊:Crystals
[Multidisciplinary Digital Publishing Institute]
日期:2023-08-10
卷期号:13 (8): 1238-1238
被引量:4
标识
DOI:10.3390/cryst13081238
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.
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