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Infrared study of SmMnO.sub.3./sub. crystal field excitations
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SYSNO ASEP 0327461 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Infrared study of SmMnO3 crystal field excitations Title Studium krystalopolních excitací SmMnO3 v infračervené oblasti Author(s) Nekvasil, Vladimír (FZU-D) RID, ORCID
Jandl, S. (CA)
Mukhin, A.A. (RU)
Ivanov, V.Y. (RU)
Balbashov, A.M. (RU)Number of authors 5 Source Title Journal of Applied Physics. - : AIP Publishing - ISSN 0021-8979
Roč. 105, č. 7 (2009), 07E113/1-07E113/3Number of pages 3 s. Language eng - English Country US - United States Keywords antiferromagnetic materials ; crystal field interactions ; exchange interactions (electron) ; excited states ; ground states ; infrared spectra Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects IAA100100627 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z10100521 - FZU-D (2005-2011) UT WOS 000266633500644 DOI 10.1063/1.3068013 Annotation SmMnO3 infrared transmission in the 2000-8000 cm-1 range was studied as a function of temperature. We observed several infrared-active Sm3+ crystal field transitions between the lowest 6H5/2 ground-state level and the 6H9/2, 6H11/2, 6H13/2, and 6H15/2 excited levels. The splitting of the ground-state Kramers doublet of the Sm3+ ion below TN ~ 60 K varies from 3.8 up to 5.8 cm-1 at 2K. This reflects strengthenings of the Mn3+ - Mn3+ and Mn3+ - Sm3+ magnetic interactions. In order to monitor the antiferromagnetic transition, the frequency softening of the most intense Raman-active B2g stretching mode ( 607 cm-1) below TN was also measured. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2010
Number of the records: 1