Hexagonal ferrites of X-, W-, and M-type in the system Sr-Fe-O: A comparative study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10316938" target="_blank" >RIV/00216208:11320/15:10316938 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.jssc.2015.02.007" target="_blank" >http://dx.doi.org/10.1016/j.jssc.2015.02.007</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jssc.2015.02.007" target="_blank" >10.1016/j.jssc.2015.02.007</a>

Result language

angličtina

Original language name

Hexagonal ferrites of X-, W-, and M-type in the system Sr-Fe-O: A comparative study

Original language description

Three hexagonal ferrites from the Fe-rich part of the pseudo-binary system SrO-Fe203 were investigated. Besides the well-known M-type SrFe12O19 two other ferrites were found to exist at high temperatures: W-type SrFe22+Fe163+O27 and X-type Sr2Fe22+Fe283+O46 ferrites. A detailed characterization of the X-type Srferrite is reported here for the first time using XRD, HRTEM, magnetization measurements, Mössbauer and Fe-57 NMR spectroscopies and ab initio calculations of the electronic structure. The resultsare compared to those of W- and M-type Sr ferrites. Mossbauer spectra were analyzed with six Fe contributions in the case of the X-type, seven Fe-sites for the W-type and five Fe sites for the M-type in agreement with crystal structure arrangements. Based on a detailed analysis of the NMR spectra in comparison with ab initio calculations the NMR lines were assigned to individual crystal sites. A preferential occupation of ferrous ions in the S blocks of the X- and W-type ferrites was el

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GPP204%2F12%2FP352" target="_blank" >GPP204/12/P352: Structure-property relationship in magnetic and multiferroic hexaferrites</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Solid State Chemistry

ISSN

0022-4596

e-ISSN

—

Volume of the periodical

226

Issue of the periodical within the volume

MAR

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

133-141

UT code for WoS article

000354152500020

EID of the result in the Scopus database

2-s2.0-84924260507