Low temperature spin-glass magnetic behavior of Ce3Pd20Ge6статья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:A polycrystalline sample of Ce3Pd20Ge6 is investigated using a dc SQUID magnetometer. A noticeable difference between ZFC and FC magnetic susceptibility is found below ≈60 K. The temperature dependence of the magnetic susceptibility demonstrates an anomaly near approximately 2.8 K below which a remanent magnetic moment exists. Two characteristic temperatures detected support the assumption that there are different cerium magnetic subsystems in Ce3Pd20X6 (X=Ge, Si) compounds. Unusual magnetic behavior observed in Ce3Pd20Ge6 is discussed within the framework of the “molecular magnetism” model which predicts a frustration of exchange interactions