Magnetic properties of La0.7-xPrxCa0.3MnO3 single crystals: When is Banerjee criterion applicable? / Bebenin N. G.,Zainullina R. I.,Ustinov V. V.,Mukovskii Y. M. // JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - 2014. - V. 354, l. . - P. 76-80.

ISSN/EISSN:

0304-8853 / 1873-4766

Type:

Article

Abstract:

The magnetic properties of ferromagnetic single crystals of La0.7-xPrxCa0.3MnO3 with x <= 0.3 are studied. It is shown that the transition temperature T-M determined from the position of an inflection point in the magnetization-versus-temperature curve is linear in magnetic field: T-M(H)=T-M(0)+BMH with T-M(0) = (229-270x) K, B-M=0.8 K/kOe for x=0.0, 0.1, 02 and B-M=1.2 K/kOe for x=0.3. The magnetic moments of Pr and Mn are shown to be parallel to each other. The data obtained are employed in order to analyze when Banerjee criterion for distinguishing first and second order transitions can be used in inhomogeneous ferromagnets. Phenomenological theory for the Arrott-Belov plots is also developed. It is found experimentally and theoretically that in inhomogeneous ferromagnets, the slope of the Arrott-Belov plots is not a universal tool for determining the type of transition, in fact, Banerjee criterion may be used only in the paramagnetic state beyond the transition region. (C) 2013 Elsevier B.V. All rights reserved.

Author keywords:

Manganite; Inhomogeneous ferromagnet; Banerjee criterion TRANSITIONS; ORDER

DOI:

10.1016/j.jmmm.2013.10.033

Web of Science ID:

ISI:000329109300014

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAR
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
EISSN	1873-4766
Keywords-Plus	TRANSITIONS; ORDER
Research-Areas	Materials Science; Physics
Web-of-Science-Categories	Materials Science, Multidisciplinary; Physics, Condensed Matter
Author-Email	bebenin@imp.uran.ru
ResearcherID-Numbers	Ustinov, Vladimir/G-7501-2011 Bebenin, Nikolay/K-6955-2013 Zainullina, Rimma/J-4287-2013
ORCID-Numbers	Ustinov, Vladimir/0000-0002-5155-7947 Bebenin, Nikolay/0000-0003-2035-6103 Zainullina, Rimma/0000-0002-0353-4775
Funding-Acknowledgement	UD of RAS within the framework of Program of fundamental research of RAS ``Quantum mesoscopic and disordered structures{''} {[}12-P-2-1034]; RFBR {[}12-02-00208]; {[}NSh-6172.2012.2]
Funding-Text	This work was supported by UD of RAS within the framework of Program of fundamental research of RAS ``Quantum mesoscopic and disordered structures{''} (project 12-P-2-1034), by Grant NSh-6172.2012.2 and RFBR grant 12-02-00208.
Number-of-Cited-References	14
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	12
Journal-ISO	J. Magn. Magn. Mater.
Doc-Delivery-Number	281NW