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Antiferromagneticspinglass-likebehaviorinsinteredmultiferroic AurivilliusBim+1Ti3Fem−3O3m+3 compounds

Abstract

The structure,hyperfine interactionsandmagneticpropertiesoftheseriesofmultiferroicBim+1Ti3Fem−3 O3m+3 Aurivilliuscompoundswith m¼4–8 werestudiedusingX-raydiffraction, 57Fe Mössbauer spectroscopyandvibratingsamplemagnetometry.Sampleswerepreparedbytheconventionalsolid- state sinteringmethod.Bulkmagneticmeasurementsshowedthatfor m¼4 thecompoundis paramagnetic downto2Kwhileinthecompoundwith m¼5 theantiferromagnetictypetransition wasobservedat11K.Inthecaseofcompoundswith m¼6–8 muchmorecomplexmagneticbehavior wasfound.Forthesecompoundsagradualspinfreezingandantiferromagneticspinglass-likeordering wereobservedondecreasingtemperature.Thetemperatureofspinglassfreezingwasdeterminedas 260, 280and350Kfor m¼6, 7and8,respectively.Room-temperatureMössbauerspectraofallthe compounds studiedconfirm theirparamagneticstate.However,liquidnitrogenandliquidhelium temperaturemeasurementsrevealmagneticorderingwitharesidualparamagneticphasecontribution for thecompoundswith m¼5–8.

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Category:
Articles
Type:
artykuły w czasopismach
Published in:
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS no. 342, pages 27 - 34,
ISSN: 0304-8853
Language:
English
Publication year:
2013
Bibliographic description:
Jartych E., Pikula T., Mazurek M., Lisińska-Czekaj A., Czekaj D., Gąska K., Przewoźnik J., Surowiec Z.: Antiferromagneticspinglass-likebehaviorinsinteredmultiferroic AurivilliusBim+1Ti3Fem−3O3m+3 compounds// JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS -Vol. 342, (2013), s.27-34
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.jmmm.2013.04.046
Verified by:
Gdańsk University of Technology

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