Magnetism, transport and charge order in Bi1-xSrxMnO3

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F04%3A00011693" target="_blank" >RIV/60461373:22310/04:00011693 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Magnetism, transport and charge order in Bi1-xSrxMnO3
Original language description
The structural, magnetic and transport properties in the strontiumrich part of Bi$_{1-x}$Sr$_{x}$MnO$_{3}$ solid solution($xinlangle$0.5;1$rangle$) were examined by X-ray powderdiffraction, $DC$ susceptibility, thermopower, resisitivity andthermal conductivity measurements. All material characteristicsare significantly changed at the temperature of charge ordering,$T_{CO}$, which gradually decreases from $sim$~550 K for $x$=0.5to almost 0~K at $x$=0.9. Above $T_{CO}$ a temperature independentthermopower, whose absolute value increases with $x$, indicatespolaronic transport. Below $T_{CO}$ an activated transportmechanism of localized charge carriers is observed. The Weisstemperature decreases with $x$ and becomes negative for $x$=0.8suggesting antiferromagnetic interactions at high temperatures.The evolution of the above mentioned effects is accompanied by aprogressive decrease of orthorhombic distorsion at roomtemperature.
Czech name
Magnetizmus, transport a nábojové uspořádání v Bi1-xSrxMnO3
Czech description
Magnetizmus, transport a nábojové uspořádání v Bi1-xSrxMnO3

Type
J<sub>x</sub> - 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/GA203%2F03%2F0924" target="_blank" >GA203/03/0924: Ordering phenomena and chemical bond in bismuth based manganites</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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