Size effect in nanocrystalline manganites La(1-x)A(x)MnO(3) (A = Ag, Sr) / Teplykh AE,Bogdanov SG,Valiev EZ,Pirogov AN,Dorofeev YA,Ostroushko AA,Udilov AE,Kazantsev VA,Kar'kin AE // PHYSICS OF THE SOLID STATE. - 2003. - V. 45, l. 12. - P. 2328-2333.

ISSN/EISSN:

1063-7834 / нет данных

Type:

Article

Abstract:

Nanocrystalline samples of the manganites La0.9Ag0.1MnO3, La0.7Ag0.3MnO3, and La0.7Sr0.3MnO3 were synthesized through pyrolysis and isothermally annealed. The atomic, subatomic, and magnetic structures of these manganites were studied using magnetic, x-ray, and neutron diffraction measurements. Increasing the annealing temperature from 600 to 1200degreesC coarsens the grains from 30-40 to 600-700 nm in size. All the samples studied have rhombohedral structure and are ferromagnets. The Curie temperature decreases for the samples doped by silver and increases for the samples doped by strontium as the anneal temperature is increased. The magnetization of the Mn ions increases with nanoparticle size in all the three systems, which indicates the presence of a size effect. (C) 2003 MAIK ``Nauka / Interperiodica{''}.

Author keywords:

CITRATE PRECURSOR TECHNIQUE

DOI:

10.1134/1.1635506

Web of Science ID:

ISI:000187342100020

Соавторы в МНС:

Другие поля

Поле	Значение
Publisher	AMER INST PHYSICS
Address	CIRCULATION \& FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
Language	English
Keywords-Plus	CITRATE PRECURSOR TECHNIQUE
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Bogdanov, Savva/K-1613-2013 Pirogov, Alexander/K-8115-2013 Karkin, Alexander/J-6712-2013 valiev, eduard/J-9337-2013 Aleksander, Teplykh/J-5571-2013
ORCID-Numbers	Bogdanov, Savva/0000-0003-2327-1180 Pirogov, Alexander/0000-0001-7321-1245 Karkin, Alexander/0000-0003-0464-4762 valiev, eduard/0000-0002-0760-0370 Aleksander, Teplykh/0000-0002-3698-9100
Number-of-Cited-References	13
Usage-Count-Since-2013	3
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	754QN