Magnetism, transport and charge order in Bi1-xSrxMnO

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F03%3A00008266" target="_blank" >RIV/60461373:22310/03:00008266 - 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-xSrxMnO
Original language description
The structural, magnetic and transport properties in the strontium rich part of Bi1-xSrxMnO3 solid solution (x = 0.5-1) were examined by X-ray powder difraction, DC susceptibility, thermopower, resisitivity and thermal conductivity measurements. All material characteristics are significantly changed at the temperature of charge ordering, TCO, which gradually decreases from 550 K for x=0.5 to almost 0 K at x=0.9. Above TCO a temperature independent thermopower, whose absolute value increases with x, indicates polaronic transport. Below TCO an activated transport mechanism of localized charge carriers is observed. The Weiss temperature decreases with x and becomes negative for x=0.8 suggesting antiferromagnetic interactions at high temperatures. The evolution of the above mentioned efects is accompanied by a progressive decrease of orthorhombic distorsion at room temperature.
Czech name
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Czech description
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Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Sborník - International Conference on Magnetism 2003
ISBN
neuveden
ISSN
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e-ISSN
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Number of pages
1
Pages from-to
657
Publisher name
International conference on magnetism 2003
Place of publication
Roma
Event location
Roma
Event date
Jul 27, 2003
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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