Kinetic effects in an La0.8Ba0.2MnO3 single crystal / Bebenin NG,Zainullina RI,Mashkautsan VV,Gaviko VS,Ustinov VV,Mukovskii YM,Shulyatev DA // JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS. - 2000. - V. 90, l. 6. - P. 1027-1034.

ISSN/EISSN:

1063-7761 / нет данных

Type:

Article

Abstract:

Results are presented of a complex study of the magnetic and resistive properties, the Hall effect, the thermal emf, and the longitudinal Nernst-Ettingshausen effect of an La0.8Ba0.2MnO3 single crystal at temperatures between 77 and 400 K. A maximum was observed near the Curie temperature T-c on the temperature dependences of the resistivity, the thermal emf, and the normal Hall coefficient. It was established that the Hall mobility remains constant near T-c . It is shown that these anomalies in the kinetic properties are attributable to a change in the position of the mobility edge relative to the Fermi level. A semiphenomenological theory is put forward to quantitatively describe the temperature and magnetic-field dependences of the resistivity and thermal emf of lanthanum manganites near the phase-transition temperature. (C) 2000 MAIK ``Nauka / Interperiodica{''}.

Author keywords:

LA0.67CA0.33MNO3 THIN-FILMS; COLOSSAL MAGNETORESISTANCE; PHASE-SEPARATION; GIANT-MAGNETORESISTANCE; HOPPING CONDUCTIVITY; DISORDERED SOLIDS; DOUBLE-EXCHANGE; LA1-XSRXMNO3; MANGANITES; THERMOPOWER

DOI:

10.1134/1.559191

Web of Science ID:

ISI:000087771700012

Соавторы в МНС:

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Другие поля

Поле	Значение
Publisher	AMER INST PHYSICS
Address	2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
Language	English
Keywords-Plus	LA0.67CA0.33MNO3 THIN-FILMS; COLOSSAL MAGNETORESISTANCE; PHASE-SEPARATION; GIANT-MAGNETORESISTANCE; HOPPING CONDUCTIVITY; DISORDERED SOLIDS; DOUBLE-EXCHANGE; LA1-XSRXMNO3; MANGANITES; THERMOPOWER
Research-Areas	Physics
Web-of-Science-Categories	Physics, Multidisciplinary
ResearcherID-Numbers	Ustinov, Vladimir/G-7501-2011 Zainullina, Rimma/J-4287-2013 Shulyatev, Dmitry/M-7278-2014 Gaviko, Vasilii/K-4632-2013 Bebenin, Nikolay/K-6955-2013
ORCID-Numbers	Ustinov, Vladimir/0000-0002-5155-7947 Zainullina, Rimma/0000-0002-0353-4775 Shulyatev, Dmitry/0000-0002-7642-0277 Gaviko, Vasilii/0000-0002-9841-9293 Bebenin, Nikolay/0000-0003-2035-6103
Number-of-Cited-References	46
Usage-Count-Since-2013	2
Journal-ISO	J. Exp. Theor. Phys.
Doc-Delivery-Number	327BC