Quasi-two-dimensional character of the magnetic order-disorder transition in YMn6Sn6 / Bykov A.A., Chetverikov Y.O., Pirogov A.N., Grigor’ev S.V. // JETP Letters. - 2015. - V. 101, l. 10. - P. 699-702.

ISSN:

00213640

Type:

Article

Abstract:

The magnetic structure of YMn6Sn6 helimagnet has been studied by small-angle neutron scattering in the temperature range from 25 to 360 K. Two peaks with centers at 1.7 and 0 nm−1 have been observed in the dependences of the intensity of neutron scattering on the momentum transfer. An increase in the temperature is accompanied by a decrease in the intensity of the first peak and an increase in the intensity of the second peak. In addition, the shape of the peak with the center at 1.7 nm−1 changes from Gaussian to Lorentzian. This change can be explained by the fact of the magnetic order-disorder transition from the helimagnet to the state with spatial ferromagnetic fluctuations occurs in YMn6Sn6 in the interval of 250–360 K. The anisotropy of the shape along the momentum transfer is observed for the peak with the center at 1.7 nm−1. This, as well as the compatible variation of the FWHM and intensity of the peak with the center at 1.7 nm−1 with the temperature, indicates the quasi-two-dimensional character of the occurring magnetic transition. © 2015, Pleiades Publishing, Inc.

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нет данных

DOI:

10.1134/S0021364015100057

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938331004&doi=10.1134%2fS0021364015100057&partnerID=40&md5=5b1b8bfb7c2ac0afdbc02ead4870eb7e

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938331004&doi=10.1134%2fS0021364015100057&partnerID=40&md5=5b1b8bfb7c2ac0afdbc02ead4870eb7e
Affiliations	St. Petersburg State University, St. Petersburg, Russian Federation; Petersburg Nuclear Physics Institute, National Research Centre Kurchatov Institute, Gatchina, Russian Federation; Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russian Federation; Ural Federal University, Yekaterinburg, Russian Federation
Funding Details	14-22-01073, RFBR, Russian Foundation for Basic Research
References	Szytula, A., (1994) Handbook of Crystal Structures and Magnetic Properties of Rare Earth Intermetallics, , CRC, Boca Raton; Canepa, F., Duraj, R., Lefèvre, C., Malaman, B., Mar, A., Mazet, T., Napoletano, M., Vernière, A., (2004) J. Alloys Compd., 383, p. 10; Mazet, T., Isnard, O., Malaman, B., (2005) J. Phys.: Condens. Matter, 17, p. 1547; Venturini, G., Fruchart, D., Malaman, B., (1996) J. Alloys Compd., 236, p. 102; Schobinger-Papamantellos, P., André, G., Rodriguez-Carvajal, J., Duijn, H.G., Buschow, K.H., (2000) J. Alloys Compd., 306, p. 47; Zajkov, N.K., Mushnikov, N.V., Gerasimov, E.G., Gaviko, V.S., Bartashevich, M.I., Goto, T., Khrabrov, V.I., (2004) J. Alloys Compd., 363, p. 40; Bogdanov, S.G., Mushnikov, N.V., Terentiev, P.B., Gerasimov, E.G., Grigoriev, S.V., Okorokov, A.I., Chetverikov, Y.O., Pirogov, A.N., (2013) Phys. Met. Metallogr., 114, p. 566; Cowley, J.M., (1995) Diffraction Physics, , North Holland, Amsterdam
Correspondence Address	Bykov, A.A.; St. Petersburg State UniversityRussian Federation
Publisher	Maik Nauka-Interperiodica Publishing
Language of Original Document	English
Abbreviated Source Title	JETP Lett.
Source	Scopus