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

ISSN/EISSN:

0021-3640 / 1090-6487

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.

Author keywords:

NEUTRON-DIFFRACTION

DOI:

10.1134/S0021364015100057

Web of Science ID:

ISI:000358783800009

Соавторы в МНС:

—

Другие поля

Поле	Значение
Month	MAY
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1090-6487
Keywords-Plus	NEUTRON-DIFFRACTION
Research-Areas	Physics
Web-of-Science-Categories	Physics, Multidisciplinary
Author-Email	redi87@bk.ru
ResearcherID-Numbers	Bykov, Alexey/O-6395-2015 Pirogov, Alexander/K-8115-2013
ORCID-Numbers	Bykov, Alexey/0000-0001-6561-6015 Pirogov, Alexander/0000-0001-7321-1245
Funding-Acknowledgement	Russian Foundation for Basic Research {[}14-22-01073]
Funding-Text	We are grateful to the Helmholtz Center Geesthacht (Germany) for hospitality. This work was supported by the Russian Foundation for Basic Research (project no. 14-22-01073).
Number-of-Cited-References	8
Usage-Count-Since-2013	5
Journal-ISO	Jetp Lett.
Doc-Delivery-Number	CN9QL