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首页> 外文期刊>Physica, B. Condensed Matter >Magnetostriction in the rare-earth ferroborates RFe3(BO3)(4), R = Pr and Tb
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Magnetostriction in the rare-earth ferroborates RFe3(BO3)(4), R = Pr and Tb

机译:稀土铁硼酸盐中的磁致伸缩RFe3(BO3)(4),R = Pr和Tb

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摘要

Recent experimental data for magnetostriction in the rare-earth (RE) ferroborates RFe3(BO3)(4) with R = Pr and Tb are discussed from a theoretical point of view. Multipole moments of RE ions are calculated in the framework of a crystal-field model for the RE ion and the molecular-field approximation. Quadrupole approximation is shown to be sufficient for interpretation of data for longitudinal magnetostriction at the magnetic field along the trigonal axis. Parameters of PrFe3(BO3)(4) are deduced when accounting for the experimental magnetization curves that manifest a spin-flop transition.
机译:从理论的角度讨论了稀土(RE)铁硼酸盐RFe3(BO3)(4)中磁致伸缩的最新实验数据,其中R = Pr和Tb。 RE离子的多极矩是在RE离子的晶体场模型和分子场近似框架内计算的。示出四极近似足以解释沿三角轴的磁场处的纵向磁致伸缩数据。考虑到表现出自旋跃迁转变的实验磁化曲线时,可以推导出PrFe3(BO3)(4)的参数。

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