Magnetoresistive properties of bulk polycrystalline La0.75Sr0.25MnO3 manganites / Nosov AP,Vasil'ev VG,Vladimirova EV,Ustinov VV // PHYSICS OF METALS AND METALLOGRAPHY. - 2001. - V. 92, l. 5. - P. 479-485.

ISSN/EISSN:

0031-918X / нет данных

Type:

Article

Abstract:

The results of experimental investigations of magnetic and magnetoresistive properties of bulk polycrystalline La0.75Sr0.25MnO3 manganites annealed for various times in an oxygen flow are presented. Contributions to the magnetoresistance from grains and grain boundaries are separated. It is shown that these contributions depend on the annealing duration. It was found that the magnetic anisotropy of the system increases with an increase in the annealing duration, The mechanisms of conductivity are discussed within the model of tunneling of spin-polarized carriers through nanosize grain boundaries.

Author keywords:

COLOSSAL MAGNETORESISTANCE; FIELD MAGNETORESISTANCE; MANGANESE PEROVSKITES; GRAIN-BOUNDARIES; THIN-FILMS; TRANSITION; BEHAVIOR

DOI:

нет данных

Web of Science ID:

ISI:000172848100007

Соавторы в МНС:

Другие поля

Поле	Значение
Month	NOV
Publisher	INTERPERIODICA
Address	PO BOX 1831, BIRMINGHAM, AL 35201-1831 USA
Language	English
Keywords-Plus	COLOSSAL MAGNETORESISTANCE; FIELD MAGNETORESISTANCE; MANGANESE PEROVSKITES; GRAIN-BOUNDARIES; THIN-FILMS; TRANSITION; BEHAVIOR
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers	Ustinov, Vladimir/G-7501-2011 Nosov, Alexandr/A-3003-2013
ORCID-Numbers	Ustinov, Vladimir/0000-0002-5155-7947 Nosov, Alexandr/0000-0003-1475-0059
Number-of-Cited-References	25
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	504GC