Perovskite solid solutions La0.75Bi0.25Fe1-xCrxO3: Preparation, structural, and magnetic properties

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F17%3A00477646" target="_blank" >RIV/61389005:_____/17:00477646 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.jssc.2017.06.031" target="_blank" >http://dx.doi.org/10.1016/j.jssc.2017.06.031</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jssc.2017.06.031" target="_blank" >10.1016/j.jssc.2017.06.031</a>

Result language

angličtina

Original language name

Perovskite solid solutions La0.75Bi0.25Fe1-xCrxO3: Preparation, structural, and magnetic properties

Original language description

Solid solutions of La(0.7)sEi(0.25)Fe(1-x)Cr(x)O(3) (x = 0.1, 0.25, 0.5, and 0.75) prepared by conventional solid state reaction have been studied by means of X-ray powder diffraction (XRPD), neutron powder diffraction (NPD) and magnetic measurements. The NPD and XRPD patterns indicate orthorhombic structure (space group Pnma) for all compositions in the whole temperature range investigated (4-900 K). The lattice parameters of La0.75Bi0.25Fe1-xCrxO3 were found to decrease with the Cr content. It was established that the Fe3+ and Cr3+ cations are randomly positioned at the B-site of the perovskite structure. nnAll samples order antiferromagnetically below transition temperatures that decrease with increasing Cr content, from around 700 K for x = 0.1 to about 300 K for x = 0.75. The antiferromagnetic arrangement of the Fe3+/Cr3+ magnetic moments in the B-site is of G-type along the x-axis (Gx mode) with propagation vector k = (0,0,0) for all concentrations of Cr. Effects of the composition on several structural distortion parameters were investigated and an anomalous variation of the octahedral deformation with Cr content was found. Whilst the overall octahedral deformation varies irregularly with increasing Cr content, the octahedral tilting was found to decrease monotoneously.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/LM2015056" target="_blank" >LM2015056: Center of Accelerators and Nuclear Analytical Methods</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

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

254

Issue of the periodical within the volume

OCT

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

166-177

UT code for WoS article

000408181800025

EID of the result in the Scopus database

2-s2.0-85025464607