Transport phenomena in the La0.72Ba0.28MnO3 single crystal / Bebenin N. G.,Zainullina R. I.,Chusheva N. S.,Elokhina L. V.,Ustinov V. V.,Mukovskii Ya. M. // PHYSICS OF METALS AND METALLOGRAPHY. - 2007. - V. 103, l. 3. - P. 261-269.

ISSN/EISSN:

0031-918X / нет данных

Type:

Article

Abstract:

Results of an experimental study of the temperature dependences of the magnetization M, electrical resistivity, magnetoresistance, thermo-and magnetothermo-emf, and Hall effect of the La0.72Ba0.28MnO3 single crystal are presented. An analysis of the temperature dependences of kinetic properties shows that, at low temperatures, electrons are principal charge carriers in La0.72Ba0.28MnO3 and the metallic conduction takes place. As the temperature increases to T approximate to 145 K, the sign of the ordinary Hall coefficient reverses; this indicates the change in the type of the majority charge carriers. Within a certain temperature range which lies substantially below the Curie temperature (T-C ), a metal-semiconductor transition occurs. Near the Curie temperature and within the paramagnetic range, the manganite under study is a semiconductor; the conduction is mainly effected by holes activated to the mobility edge. The critical behavior of the resistance and magnetoresistance is discussed.

Author keywords:

75; 47; Gk; 72; 20; Pa MANGANITES; LA1-XSRXMNO3; MAGNETORESISTANCE; LA1-XBAXMNO3; TRANSITION

DOI:

10.1134/S0031918X07030064

Web of Science ID:

ISI:000245539000006

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	MANGANITES; LA1-XSRXMNO3; MAGNETORESISTANCE; LA1-XBAXMNO3; TRANSITION
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers	Ustinov, Vladimir/G-7501-2011 Svetlana, Ahmetzhanova/H-3797-2012 Zainullina, Rimma/J-4287-2013 Bannikova, Nataly/J-5273-2013 Bebenin, Nikolay/K-6955-2013
ORCID-Numbers	Ustinov, Vladimir/0000-0002-5155-7947 Zainullina, Rimma/0000-0002-0353-4775 Bannikova, Nataly/0000-0002-8716-5128 Bebenin, Nikolay/0000-0003-2035-6103
Number-of-Cited-References	21
Usage-Count-Since-2013	5
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	154WQ