Concentrational commensurate-incommensurate magnetic phase transition in Y1 - X Tb x Mn6Sn6 / Bogdanov S.G., Mushnikov N.V., Terent'Ev P.B., Gerasimov E.G., Grogor'Ev S.V., Okorokov A.I., Chetverikov Yu.O., Ekerleb G., Pranzas K., Pirogov A.N. // Physics of Metals and Metallography. - 2013. - V. 114, l. 7. - P. 566-572.

ISSN:
0031918X
Type:
Article
Abstract:
The magnetic state of Y1 - x Tb x Mn 6Sn6 (with x ≤ 0.25) alloy is studied at different temperatures and magnetic fields by neutron diffraction. The alloy with x c = 0.22 exhibits an incommensurate-to-commensurate structure phase transition. The transition is accompanied by a decrease in the unit-cell volume. The weak dependence of the intensity of satellites on the x concentration and the monotonic displacement of their angular positions with increasing x allow us to conclude that the antiferromagnet → ferrimagnet transition occurs through the uniform magnetic state. The incommensurate phase in YMn 6Sn6 exhibits four satellites, which are observed in the low-angle range of X-ray diffraction pattern and demonstrate different behavior with changing temperature. At 293 K, the antiferromagnet → ferromagnet transition in the Y1 -x Tb x Mn6Sn6 compound can be induced by applied magnetic field, in particular, the field μ0 H = 0.3 T induces the transition in Tb0.15Y 0.85Mn6Sn6. © 2013 Pleiades Publishing, Ltd.
Author keywords:
intermetallic compounds; magnetic phase transitions; neutron diffraction
Index keywords:
Angular positions; Applied magnetic fields; Changing temperature; Incommensurate phase; Magnetic phase transitions; Structure phase transitions; Unit-cell volume; Weak dependences; Antiferromagnetic m
DOI:
10.1134/S0031918X13070028
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Affiliations Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Ekaterinburg 620990, Russian Federation; Petersburg Nuclear Physics Institute, National Research Centre, Kurchatov Institute, Gatchina, St.-Petersburg 188300, Russian Federation; GKSS Research Centre Geesthacht GmbH, Geesthacht 21502, Germany
Author Keywords intermetallic compounds; magnetic phase transitions; neutron diffraction
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Correspondence Address Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Ekaterinburg 620990, Russian Federation
Language of Original Document English
Abbreviated Source Title Phys. Met. Metallogr.
Source Scopus