论文标题
磁性对晶格振动的影响：Mössbauer光谱证据
Effect of Magnetism on Lattice Vibrations: Mössbauer Spectroscopic Evidence
论文作者
论文摘要
根据所审查的可用文献，结果与磁力对莫斯鲍尔光谱在57FE和119SN探针原子上获得的晶格动力学的影响有关。提出和讨论的是Sigma期Fe-Cr，Fe-V，Fe-Cr-Ni和Lambda-phase（C14 Laves）NBFE2化合物，这些化合物属于富兰克式时期，金属铬和金属铬和铁单氧化铁，盛会。所有这些金属系统的共同特征是它们磁性的巡回特征。两个光谱参数与晶格动力学相关。中心移动，CS和/或无后坐力分数F，被认为是功绩的数字。它们的温度依赖性显示在磁有序温度下的异常，这证明磁相中的振动与顺磁相的振动不同。磁性排序温度越低，差异越强。
Based on the available literature reviewed are results pertinent to the effect of magnetism on lattice dynamics obtained by Mössbauer spectroscopy at 57Fe and 119Sn probe atoms. Presented and discussed are sigma-phase Fe-Cr, Fe-V, Fe-Cr-Ni and lambda-phase (C14 Laves) NbFe2 compounds that belong to the Frank-Kasper family of phases, metallic chromium and iron mono-arsenide, FeAs. The common feature of all these metallic systems is itinerant character of their magnetism. Two spectral parameters relevant to the lattice dynamics viz. the center shift, CS, and/or the recoil-free fraction, f, are considered as figures of merit. Their temperature dependences show anomalies at magnetic ordering temperatures giving evidence that that vibrations in the magnetic phase are different than those in the paramagnetic phase. The lower the magnetic ordering temperature, the stronger the difference.
