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Neutron scattering study on magnetic ordering in a partially rare-earth filled skutterudite PrxFe4Sb12

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Published under licence by IOP Publishing Ltd
, , Citation K Iwasa et al 2012 J. Phys.: Conf. Ser. 391 012025 DOI 10.1088/1742-6596/391/1/012025

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1 Department of Physics, Tohoku University, Sendai 980-8578, Japan

2 CMRC, IMSS, High Energy Accelerator Research Organization, Ibaraki 305-0801, Japan

3 Department of Physics, Kobe University, Kobe 657-8501, Japan

4 Institute of Applied Beam Science, Ibaraki University, Ibaraki 310-8512, Japan

5 IMRAM, Tohoku University, Sendai 980-8577, Japan

6 Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan

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1742-6596/391/1/012025

Abstract

Neutron scattering studies reveal that a crystal-field-splitting ground state of Pr3+ 4f2 electrons in a partially filled PrxFe4Sb12 (x < 1) is a triplet. A magnetically ordered structure below 4 K consists of both magnetic moments at the Pr and Fe sites, in contrast to the x = 1 system without any magnetic ordering due to the 4f-electron singlet ground state.

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10.1088/1742-6596/391/1/012025