КФУ. Карточка публикации. Evidence of the Plaquette Structure of Fe1+xTe Iron Telluride: Moossbauer Spectroscopy Study

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EVIDENCE OF THE PLAQUETTE STRUCTURE OF FE1+XTE IRON TELLURIDE: MOOSSBAUER SPECTROSCOPY STUDY

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2019

Язык

английский

Авторы, сотрудники КФУ

Вагизов Фарит Габдулхакович, автор

Киямов Айрат Газинурович, автор

Тагиров Ленар Рафгатович, автор

Таюрский Дмитрий Альбертович, автор

Библиографическое описание на языке оригинала

Kiiamov A.G, Tagirov L.R, Vagizov F.G, Evidence of the Plaquette Structure of Fe1+xTe Iron Telluride: Mossbauer Spectroscopy Study//Physica Status Solidi (B) Basic Research. - 2019. - Vol., Is.. - Art. № 1800698.

Аннотация

We have synthesized single-crystalline Fe1+xTe iron telluride with off-stoichiometric iron by the Bridgman method. The x-ray diffraction and wave-length-dispersive x-ray electron-probe microanalysis characterization have shown Fe1:125Te stoichiometry of our samples. Spin-polarized ab initio calculations of the electric field gradients around interstitial iron atoms for Fe1:125Te have shown that in the first and second coordination rings around the interstitial iron, spin and electron densities are strongly perturbed against the stoichiometric ones. Together with the interstitial iron this gives rise to three kinds of iron centers making up a round-corner plaquette. The room-temperature M¨ossbauer spectra measured at different incidence angles of gamma-radiation were satisfactorily fitted utilizing the hyperfine parameters, calculated within the plaquette model. The lowtemperature data were well described with the assumption of an incommensurate collinear SDW phase, showing consistency with neutron scattering data for the Fe1:125Te system.

Ключевые слова

iron chalcogenides, M¨ossbauer spectroscopy, ab initio

Название журнала

Physica Status Solidi (B) Basic Research

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85062348112&doi=10.1002%2fpssb.201800698&partnerID=40&md5=544b106351e7ed49a8b457acc398bfc5

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https://repository.kpfu.ru/?p_id=198109

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Вагизов Фарит Габдулхакович	ru_RU
dc.contributor.author	Киямов Айрат Газинурович	ru_RU
dc.contributor.author	Тагиров Ленар Рафгатович	ru_RU
dc.contributor.author	Таюрский Дмитрий Альбертович	ru_RU
dc.date.accessioned	2019-01-01T00:00:00Z	ru_RU
dc.date.available	2019-01-01T00:00:00Z	ru_RU
dc.date.issued	2019	ru_RU
dc.identifier.citation	Kiiamov A.G, Tagirov L.R, Vagizov F.G, Evidence of the Plaquette Structure of Fe1+xTe Iron Telluride: Mossbauer Spectroscopy Study//Physica Status Solidi (B) Basic Research. - 2019. - Vol., Is.. - Art. № 1800698.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=198109	ru_RU
dc.description.abstract	Physica Status Solidi (B) Basic Research	ru_RU
dc.description.abstract	We have synthesized single-crystalline Fe1+xTe iron telluride with off-stoichiometric iron by the Bridgman method. The x-ray diffraction and wave-length-dispersive x-ray electron-probe microanalysis characterization have shown Fe1:125Te stoichiometry of our samples. Spin-polarized ab initio calculations of the electric field gradients around interstitial iron atoms for Fe1:125Te have shown that in the first and second coordination rings around the interstitial iron, spin and electron densities are strongly perturbed against the stoichiometric ones. Together with the interstitial iron this gives rise to three kinds of iron centers making up a round-corner plaquette. The room-temperature M¨ossbauer spectra measured at different incidence angles of gamma-radiation were satisfactorily fitted utilizing the hyperfine parameters, calculated within the plaquette model. The lowtemperature data were well described with the assumption of an incommensurate collinear SDW phase, showing consistency with neutron scattering data for the Fe1:125Te system.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	iron chalcogenides	ru_RU
dc.subject	M¨ossbauer spectroscopy	ru_RU
dc.subject	ab initio	ru_RU
dc.title	Evidence of the Plaquette Structure of Fe1+xTe Iron Telluride: Moossbauer Spectroscopy Study	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU