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.
Authors
- dr hab. Elżbieta Jartych,
- dr Tomasz Pikula,
- dr Mariusz Mazurek,
- dr hab. Agata Lisińska-Czekaj link open in new tab ,
- prof. dr hab. inż. Dionizy Czekaj link open in new tab ,
- dr hab. inż. Krzysztof Gąska,
- prof. dr hab. Janusz Przewoźnik,
- dr hab. Zbigniew Surowiec
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1016/j.jmmm.2013.04.046
- Category
- Publikacja w czasopiśmie
- Type
- artykuły w czasopismach
- Language
- angielski
- Publication year
- 2013
