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High-Frequency Tunable EPR of Fe2+ in the Natural and Synthetic Forsterite

机译:天然和合成镁橄榄石中Fe 2 + 的高频可调EPR

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摘要

The natural forsterites and their synthetic analogs were investigated on a wide-band EPR spectrometer in the frequency region of 65–850 GHz. Two types of non-Kramers ions Fe2+ were discovered at the site M1 (inversion symmetry) and M2 (mirror plane symmetry). The ratio of concentrations of Fe2+ in these positions was measured in synthetic and natural crystals. The features of EPR spectra of synthetic and natural forsterite are discussed. Spin Hamiltonian with S = 1 was used for theoretical treatment of angular and field–frequency dependences.
机译:天然镁橄榄石及其合成类似物在65-850 GHz频率范围内的宽带EPR光谱仪上进行了研究。在位点M1(反演对称)和M2(镜面对称)处发现了两种类型的非克拉默离子Fe 2 + 。在合成和天然晶体中测量这些位置的Fe 2 + 的浓度比。讨论了合成和天然镁橄榄石的EPR光谱特征。 S = 1的自旋哈密顿量用于理论上的角度和场频依赖性。

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