Theoretical Review of Mossbauer Effect,Hyperfine Interactions Parameters and the Valence Fluctuations in Eu Systems
作者机构：Electrical Engineering Department The Higher Institute of Sciences and Technology Ajdabiya Libya
出 版 物：《Journal of Applied Mathematics and Physics》 (应用数学与应用物理（英文）)
年 卷 期：2019年第7卷第1期
页 面：254-270页
主 题：M?ssbauer Spectroscopy Resonant Absorption Recoil-Free Fraction 151Eu Mossbauer Isotope Hyperfine Interactions Valence Fluctuations
摘 要：In this paper, an overview of the theory of Mössbauer effect is covered, and the main hyperfine interactions parameters which affect the shape of the resultant Mössbauer spectrum are explained and illustrated as well. In principle, Mössbauer effect applies to any and all nuclides, but in practice, certain ideal properties are desirable;that is, the conditions for recoil-free emission and absorption of gamma rays must be optimized. Therefore, briefly discussed in this review, one of the most commonly used for practical and fundamental studies the 151Eu Mössbauer isotope. Also, the intermediate valence phenomena and their theoretical treatments are briefly discussed.
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