KFU. Card publication. Iron oxidation state in La0.7Sr1.3Fe0.7Ti0.3O4 and La0.5Sr1.5Fe0.5Ti0.5O4 layered perovskites: Magnetic properties

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FEDERAL UNIVERSITY

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IRON OXIDATION STATE IN LA0.7SR1.3FE0.7TI0.3O4 AND LA0.5SR1.5FE0.5TI0.5O4 LAYERED PEROVSKITES: MAGNETIC PROPERTIES

Form of presentation

Articles in international journals and collections

Year of publication

2021

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Authors, employees of KFU

Vagizov Farit Gabdulkhakovich, author

Gavrilova Tatyana Pavlovna, author

Gilmutdinov Ildar Faritovich, author

Eremina Rushana Mikhaylovna, author

Yagfarova Venera Rasimovna, author

Yacyk Ivan Vladimirovich, author

Other authors

Dieva Yuliya Alekseevna, author

Chupakhina Tatyana Ivanovna, author

Authors, postgraduates KFU

Cherosov Mikhail Andreevich, postgraduate kfu

Bibliographic description in the original language

Gavrilova, T.P. Iron oxidation state in La0.7Sr1.3Fe0.7Ti0.3O4 and La0.5Sr1.5Fe0.5Ti0.5O4 layered perovskites: Magnetic properties / T.P. Gavrilova, A.R. Yagfarova , Yu.A. Deeva, I.V. Yatsyk a, I.F. Gilmutdinov , M. A. Cherosov , F.G. Vagizovb, T.I. Chupakhina , R.M. Eremina // Journal of Physics and Chemistry of Solids – 2021. – Vol. 153. – P.109994-9

Annotation

La0.5Sr1.5Fe0.5Ti0.5O4 and La0.7Sr1.3Fe0.7Ti0.3O4 solid solutions with the layered perovskite structure were synthesized using a solid state method. Structural properties of obtained samples were characterized using X-ray diffraction and X-ray fluorescence analyses. Magnetic properties were investigated using magnetometry, electron spin resonance (ESR) and M¨ossbauer spectroscopy methods. Based on magnetization and ESR measurements it was suggested the presence of Fe4+ ions in addition to trivalent iron ions that was exactly confirmed by M¨ossbauer spectroscopy investigations. Based on all experimental results one can suggest the presence of the electronic phase separation in the investigated samples – the simultaneous existence of the paramagnetic phase and magnetically correlated regions, which form due to the mixed-valence iron ions. So the paramagnetic phase with strong antiferromagnetic correlation exists in both samples, while the second phase is ferromagnetically and ferrimagnetically correlated regions in La0.5Sr1.5Fe0.5Ti0.5O4 and La0.7Sr1.3Fe0.7Ti0.3O4, respectively.

Keywords

Layered perovskite, Electronic phase separation, Fe4+ Magnetization, Electron spin resonance, Mossbauer spectroscopy

The name of the journal

J PHYS CHEM SOLIDS

On-line resource for training course

http://dspace.kpfu.ru/xmlui/bitstream/handle/net/163605/F_Iron_oxidation_state_in_La0.7Sr1.3Fe0.7Ti0.3O4.pdf?sequence=1&isAllowed=y

URL

https://www.sciencedirect.com/science/article/abs/pii/S0022369721000603

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=250435&p_lang=2

Resource files

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Full metadata record

Field DC	Value	Language
dc.contributor.author	Vagizov Farit Gabdulkhakovich	ru_RU
dc.contributor.author	Gavrilova Tatyana Pavlovna	ru_RU
dc.contributor.author	Gilmutdinov Ildar Faritovich	ru_RU
dc.contributor.author	Eremina Rushana Mikhaylovna	ru_RU
dc.contributor.author	Yagfarova Venera Rasimovna	ru_RU
dc.contributor.author	Yacyk Ivan Vladimirovich	ru_RU
dc.contributor.author	Dieva Yuliya Alekseevna	ru_RU
dc.contributor.author	Chupakhina Tatyana Ivanovna	ru_RU
dc.contributor.author	Cherosov Mikhail Andreevich	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Gavrilova, T.P. Iron oxidation state in La0.7Sr1.3Fe0.7Ti0.3O4 and La0.5Sr1.5Fe0.5Ti0.5O4 layered perovskites: Magnetic properties / T.P. Gavrilova, A.R. Yagfarova , Yu.A. Deeva, I.V. Yatsyk a, I.F. Gilmutdinov , M. A. Cherosov , F.G. Vagizovb, T.I. Chupakhina , R.M. Eremina // Journal of Physics and Chemistry of Solids – 2021. – Vol. 153. – P.109994-9	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=250435&p_lang=2	ru_RU
dc.description.abstract	J PHYS CHEM SOLIDS	ru_RU
dc.description.abstract	La0.5Sr1.5Fe0.5Ti0.5O4 and La0.7Sr1.3Fe0.7Ti0.3O4 solid solutions with the layered perovskite structure were synthesized using a solid state method. Structural properties of obtained samples were characterized using X-ray diffraction and X-ray fluorescence analyses. Magnetic properties were investigated using magnetometry, electron spin resonance (ESR) and M¨ossbauer spectroscopy methods. Based on magnetization and ESR measurements it was suggested the presence of Fe4+ ions in addition to trivalent iron ions that was exactly confirmed by M¨ossbauer spectroscopy investigations. Based on all experimental results one can suggest the presence of the electronic phase separation in the investigated samples – the simultaneous existence of the paramagnetic phase and magnetically correlated regions, which form due to the mixed-valence iron ions. So the paramagnetic phase with strong antiferromagnetic correlation exists in both samples, while the second phase is ferromagnetically and ferrimagnetically correlated regions in La0.5Sr1.5Fe0.5Ti0.5O4 and La0.7Sr1.3Fe0.7Ti0.3O4, respectively.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Layered perovskite	ru_RU
dc.subject	Electronic phase separation	ru_RU
dc.subject	Fe4+ Magnetization	ru_RU
dc.subject	Electron spin resonance	ru_RU
dc.subject	Mossbauer spectroscopy	ru_RU
dc.title	Iron oxidation state in La0.7Sr1.3Fe0.7Ti0.3O4 and La0.5Sr1.5Fe0.5Ti0.5O4 layered perovskites: Magnetic properties	ru_RU
dc.type	Articles in international journals and collections	ru_RU