Molecular magnetism and crystal field effects in the Kondo system Ce3Pd20(Si,Ge)6 with two Ce sublattices

Nikiforov, V.N.; Koksharov, Y.A.; Gribanov, A.V.; Baran, M.; Irhin, V.Y.

Информация о цитировании статьи получена из Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 января 2016 г.

Авторы: Nikiforov V.N., Koksharov Yu A., Gribanov A.V., Baran M., Irhin V.Yu
Журнал: Journal of Magnetism and Magnetic Materials
Том: 383
Год издания: 2015
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Первая страница: 215
Последняя страница: 219
DOI: 10.1016/j.jmmm.2014.10.014
Аннотация: The unusual electronic and magnetic properties of the systems Ce3Pd20T6 (T=Ge, Si) with two non-equivalent Ce positions are discussed. The logarithmic growth of resistance for both systems confirms the presence of the Kondo effect in the two respective temperature ranges. The two-scale behavior is explained by consecutive splitting of Ce ion levels in the crystal field. The effects of the frustration caused by the coexistence of the different Ce positions are treated, which may also significantly enhance the observed values of specific heat. A model of “molecular magnetism” with Ce2 cubes is developed. Keywords: • Magnetic properties; • Kondo lattice; • Resistivity; • Specific heat; • Frustrations. Highlights: •We study unusual properties of the systems Ce3Pd20T6 with two Ce positions. •The logarithmic growth of resistance confirms presence of the Kondo effect. •The effects of the frustration owing to different Ce positions are discussed. •A model of “molecular magnetism” with Ce2 cubes is developed.
Добавил в систему: Никифоров Владимир Николаевич

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Molecular magnetism and crystal field effects in the Kondo system Ce3Pd20(Si,Ge)6 with two Ce sublatticesстатья

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