Paramagnetic rare-earth oxide Nd2O3 investigated by muon spin spectroscopy

Article

关键词: HYDROGEN;    SUSCEPTIBILITY;    SPECTRUM;   

DOI  :  10.1103/PhysRevB.100.205203

来源: SCIE

【 摘 要 】

In the context of a systematic study of oxide materials with the muon spin spectroscopy (mu SR) technique, we report here on an investigation of paramagnetic Nd2O3. The question was whether the magnetism of Nd3+ has an influence on the observed signals. In Nd2O3, as in the other oxides, a weakly paramagnetic component is observed besides the pure diamagnetic fraction. The paramagnetic part is assigned to a transient state formed between the initial atomic and the final bound muonium configuration. In addition, a fast relaxing signal (lambda similar to 7 mu s(-1)) with 10% to 20% fraction is seen in longitudinal field. Contrary to this general behavior of the oxide materials, in the present magnetic compound, a resonancelike structure is seen in the temperature range around 40 K. We assign it tentatively to a dynamical process related to the population of the first excited Kramers doublet of the Nd3+ ion at 2.6 meV.

【 授权许可】

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