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dc.contributor.author | Malkin B.Z. | |
dc.contributor.author | Bud'Ko S.L. | |
dc.contributor.author | Novikov V.V. | |
dc.date.accessioned | 2021-02-25T20:56:23Z | |
dc.date.available | 2021-02-25T20:56:23Z | |
dc.date.issued | 2020 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/162743 | |
dc.description.abstract | © 2020 American Physical Society. The microscopic justification for the dimerization in ladder-type rare-earth higher borides RB50 assumed by Mori [in Handbook on the Physics and Chemistry of Rare Earths, edited by K. A. Gschneidner, Jr., J.-C. G. Bünzli, and V. K. Pecharsky (North-Holland, Amsterdam, 2008), Vol. 38, p. 105] is presented. We consider a phenomenological model of crystal-field interactions and introduce Heisenberg antiferromagnetic exchange interactions between the rare-earth ions on the ladder rungs and the indirect exchange fields generated by magnetic interactions along the ladder legs. The crystal-field parameters and the exchange integrals for the rare-earth dimers are determined from modeling the temperature dependences of the heat capacity and static magnetic susceptibility. The field dependence of the low-temperature magnetization of polycrystalline samples of borides RB50 is simulated by making use of the proposed empirical expression for the renormalized magnetic moments of rare-earth ions. The characteristic anomalies of the thermal and magnetic properties of TbB50, DyB50, HoB50 and ErB50 are successfully reproduced within the framework of this approach. | |
dc.title | Crystal-field approach to rare-earth higher borides: Dimerization, thermal, and magnetic properties of R B50 (R=Tb,Dy,Ho,Er,Tm) CRYSTAL-FIELD APPROACH to RARE-EARTH HIGHER . B. Z. MALKIN, S. L. BUD'KO, and V. V. NOVIKOV | |
dc.type | Article | |
dc.relation.ispartofseries-issue | 5 | |
dc.relation.ispartofseries-volume | 4 | |
dc.collection | Публикации сотрудников КФУ | |
dc.source.id | SCOPUS-2020-4-5-SID85087888698 |