铁磁TDAE - C60中的Jahn - Teller效应

Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials Pub Date : 2002-10-02 DOI:10.1063/1.1514074

R. Blinc, P. Jeglič, T. Apih, J. Seliger, D. Arčon, A. Omerzu

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引用次数: 0

摘要

经充分退火的富含13C的TDAE - C60的扫频宽线13C核磁共振谱显示，在10 K以下，不均匀线宽突然增加，表明存在Jahn - Teller畸变。畸变在10k以上是动态的，在13C NMR时间尺度上低于这个温度就变成静态的。从13C核磁共振谱线形状可以提取出C60离子上带状的未配对电子自旋密度分布。

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Jahn‐Teller Effect in Ferromagnetic TDAE‐C60

The frequency swept wide line 13C NMR spectra of well annealed 13C enriched TDAE‐C60 demonstrate below 10 K a sudden increase in the inhomogeneous linewidth indicating a Jahn‐Teller distortion. The distortion is dynamic above 10 K and becomes static on the 13C NMR time scale below this temperature. From the 13C NMR lineshape a belt‐like unpaired electron spin density distribution on the C60 ion can be extracted.

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Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials

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