Evolution of magnetic properties in F-doped brownmillerite Ca2Fe2O5
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10425355" target="_blank" >RIV/00216208:11320/19:10425355 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ZF7hdkj1QI" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ZF7hdkj1QI</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/2053-1591/aaed7e" target="_blank" >10.1088/2053-1591/aaed7e</a>
Alternative languages
Result language
angličtina
Original language name
Evolution of magnetic properties in F-doped brownmillerite Ca2Fe2O5
Original language description
Brownmillerite structure is derived from an ordered arrangement of oxygen vacancies within a perovskite structure, where alternating stacked layers of tetrahedral and octahedral units are formed with oxygen vacancy channels aligned in the tetrahedral layer. Naturally it becomes an important proposition to attempt anion engineering with such structures. Accordingly, we have synthesized oxyfluoride of brownmillerite Ca2Fe2O5 by low temperature fluorination technique with poly (vinylidene fluoride) as a fluorinating agent. The global as well as local structural changes and the magnetic properties upon fluorination were investigated. Extended X-Ray Absorbtion Fine Structure Spectroscopy (EXAFS) confirmed substitution of oxygen by fluorine at the tetrahedral sites, thereby changing the oxidation state of Fe which in turn tunes the magnetic properties converting the parent G-type antiferromagnet structure to a spin glass-like one at low temperature.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
—
Continuities
—
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials Research Express
ISSN
2053-1591
e-ISSN
—
Volume of the periodical
6
Issue of the periodical within the volume
2
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
026103
UT code for WoS article
000450227300003
EID of the result in the Scopus database
2-s2.0-85058036532