KFU. Card publication. Mössbauer spectroscopy evidence of intrinsic non‐stoichiometry in iron telluride single crystals

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FEDERAL UNIVERSITY

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MöSSBAUER SPECTROSCOPY EVIDENCE OF INTRINSIC NON‐STOICHIOMETRY IN IRON TELLURIDE SINGLE CRYSTALS

Form of presentation

Articles in international journals and collections

Year of publication

2016

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Authors, employees of KFU

Kiyamov Ayrat Gazinurovich, author

Lysogorskiy Yuriy Vyacheslavovich, author

Tagirov Lenar Rafgatovich, author

Tayurskiy Dmitriy Albertovich, author

Authors, postgraduates KFU

Kiyamov Ayrat Gazinurovich, postgraduate kfu

Bibliographic description in the original language

Kiiamov A.G. Mossbauer spectroscopy evidence of intrinsic non-stoichiometry in iron telluride single crystals/Airat G. Kiiamov, Yury V. Lysogorskiy, Farit G. Vagizov, Lenar R. Tagirov, Dmitrii A. Tayurskii, Dorina Croitori, Vladimir Tsurkan, Alois Loidl // Annalen der Physik (Berlin) 2017 DOI 10.1002/andp.201600241

Annotation

Annalen der Physik (Berlin)

Keywords

iron-superconductor chalcogenides,Mössbauer spectroscopy, ab initio calculations

The name of the journal

Annalen der Physik (Berlin)

URL

http://onlinelibrary.wiley.com/doi/10.1002/andp.201600241/full

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

https://repository.kpfu.ru/eng/?p_id=149418&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Kiyamov Ayrat Gazinurovich	ru_RU
dc.contributor.author	Lysogorskiy Yuriy Vyacheslavovich	ru_RU
dc.contributor.author	Tagirov Lenar Rafgatovich	ru_RU
dc.contributor.author	Tayurskiy Dmitriy Albertovich	ru_RU
dc.contributor.author	Kiyamov Ayrat Gazinurovich	ru_RU
dc.date.accessioned	2016-01-01T00:00:00Z	ru_RU
dc.date.available	2016-01-01T00:00:00Z	ru_RU
dc.date.issued	2016	ru_RU
dc.identifier.citation	Kiiamov A.G. Mossbauer spectroscopy evidence of intrinsic non-stoichiometry in iron telluride single crystals/Airat G. Kiiamov, Yury V. Lysogorskiy, Farit G. Vagizov, Lenar R. Tagirov, Dmitrii A. Tayurskii, Dorina Croitori, Vladimir Tsurkan, Alois Loidl // Annalen der Physik (Berlin) 2017 DOI 10.1002/andp.201600241	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=149418&p_lang=2	ru_RU
dc.description.abstract	Annalen der Physik (Berlin)	ru_RU
dc.description.abstract	Annalen der Physik (Berlin)	ru_RU
dc.description.abstract	The FeTe parent compound for iron-superconductor chalcogenides was studied applying Mössbauer spectroscopy accompanied by ab initio calculations of electric field gradients at the iron nuclei. Room-temperature (RT) Mössbauer spectra of single crystals have shown asymmetric doublet structure commonly ascribed to contributions of over-stoichiometric iron or impurity phases. Low-temperature Mössbauer spectra of the magnetically ordered compound could be well described by four hyperfine-split sextets, although no other foreign phases different from Fe1.05Te were detected by XRD and microanalysis within the sensitivity limits of the equipment. Density functional ab initio calculations have shown that over-stoichiometric iron atoms significantly affect electron charge and spin density up to the second coordination sphere of the iron sub-lattice, and, as a result, four non-equivalent groups of iron atoms are formed by their local environment. The resulting four-group model consistently descri	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	iron-superconductor chalcogenides	ru_RU
dc.subject	Mössbauer spectroscopy	ru_RU
dc.subject	ab initio calculations	ru_RU
dc.title	Mössbauer spectroscopy evidence of intrinsic non‐stoichiometry in iron telluride single crystals	ru_RU
dc.type	Articles in international journals and collections	ru_RU