Magnetic ordering in Er1-xUxGa2 systems / Markin P.E., Baranov N.V., Sinitsyn E.V. // Physica B: Physics of Condensed Matter. - 1991. - V. 168, l. 3. - P. 197-204.

ISSN:

09214526

Type:

Article

Abstract:

The magnetic properties of Er1-xUxGa2 intermetallic system single crystals with the hexagonal AlB2 type structure were studied. ErGa2 compound (x=0) is a collinear antiferromagnet with [0 0 1] as easy axis and its Néel temperature (TN) is equal to 7.5 K. UGa2 is a ferromagnet with [1 0 0] as easy magnetisation direction, its Curie temperature is equal to 125 K. It is shown that the orientations of the easy axes of uranium and erbium subsystems are constant for the whole region of concentrations, but each subsystem has its own ordering temperature. Hence, the Er1-xUxGa2 system has the orthogonal magnetic arrangement of erbium and uranium subsystems. The magnetic behaviour of an erbium subsystem can be analysed in the RKKY model taking into account only the difference of electronic concentrations for the different compositions. The magnetic behaviour of a uranium subsystem does not contradict the results of the RKKY calculations. © 1991.

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DOI:

10.1016/0921-4526(91)90671-Z

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-4243416373&doi=10.1016%2f0921-4526%2891%2990671-Z&partnerID=40&md5=0a2eb716d7af44e09920c119e0e859f8

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-4243416373&doi=10.1016%2f0921-4526%2891%2990671-Z&partnerID=40&md5=0a2eb716d7af44e09920c119e0e859f8
Affiliations	Ural State University, Sverdlovsk, Russian Federation; Ural Polytechnic Institute, Sverdlovsk, Russian Federation
References	Doucoure, Gignoux, Metamagnetism in ErGa2 studied on a single crystal (1982) Journal of Magnetism and Magnetic Materials, 30, p. 111; Andreev, Belov, Deryagin, Levitin, Menovsky, (1979) J. de Phys., 40, pp. C4-C82; Sechovsky, Havela, Svoboda, Andreev, The loss of ferromagnetism in (Uv)Ga2 (v ev Y, Gd) (1986) Journal of the Less Common Metals, 121, p. 163; Smetana, Shima, Burianek, Shebek, (1981) Acta Phys. Slov., 31, p. 149; Baranov, Deryagin, Markin, Sinitsyn, (1984) Fizika Nizkih Temperatur, 10, p. 761. , (in Russian); Nijboer, de Wette, (1957) Physica, 23, p. 309; Ballou, Deryagin, Lemaire, Levitin, Tasset, (1990) Phys. Supl., 12, pp. S7-S270
Correspondence Address	Markin, P.E.; Ural State University, Sverdlovsk, Russian Federation
CODEN	PHYBE
Language of Original Document	English
Abbreviated Source Title	Phys B Condens Matter
Source	Scopus