Incommensurate-commensurate transitions in the monoaxial chiral helimagnet driven by the magnetic field / Laliena Victor,Campo Javier,Kishine Jun-Ichiro,Ovchinnikov Alexander S.,Togawa Yoshihiko,Kousaka Yusuke,Inoue Katsuya // PHYSICAL REVIEW B. - 2016. - V. 93, l. 13.

ISSN/EISSN:

2469-9950 / 2469-9969

Type:

Article

Abstract:

The zero-temperature phase diagram of the monoaxial chiral helimagnet in the magnetic-field plane formed by the components parallel and perpendicular to the helical axis is thoroughly analyzed. The nature of the transition to the commensurate state depends on the angle between the field and the helical axis. For field directions close to the directions parallel or perpendicular to the helical axis the transition is continuous, while for intermediate angles the transition is discontinuous and the incommensurate and commensurate states coexist on the transition line. The continuous and discontinuous transition lines are separated by two tricritical points with specific singular behavior. The location of the continuous and discontinuous lines and of the tricritical points depend strongly on the easy-plane anisotropy, the effect of which is analyzed. For high anisotropy the conical approximation locates the transition line very accurately, although it does not predict the continuous transitions and the tricritical behavior. It is shown that for high anisotropy, as in CrNb3S6, the form of the transition line is universal, that is, independent of the sample, and obeys a simple equation. The position of the tricritical points, which is not universal, is theoretically estimated for a sample of CrNb3S6.

Author keywords:

SKYRMIONS

DOI:

10.1103/PhysRevB.93.134424

Web of Science ID:

ISI:000374528900003

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	APR 20
Publisher	AMER PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	134424
EISSN	2469-9969
Keywords-Plus	SKYRMIONS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	laliena@unizar.es javier.campo@csic.es
ResearcherID-Numbers	INOUE, Katsuya/E-9221-2010 Ovchinnikov, Alexander/B-9906-2009 Togawa, Yoshihiko/G-2609-2017 Kishine, Jun-ichiro/C-1743-2015 Campo Ruiz, Jesus Javier/L-6558-2014
ORCID-Numbers	Kishine, Jun-ichiro/0000-0001-6162-7067 Campo Ruiz, Jesus Javier/0000-0002-3600-1721 Ovchinnikov, Alexander/0000-0002-1173-9260
Funding-Acknowledgement	Spanish Ministry of Economy and Competitiveness {[}MAT2015-68200-C2-2-P]; Government of the Russian Federation Program {[}02.A03.21.0006]; Ministry of Education and Science of the Russian Federation {[}1437, 2725]
Funding-Text	J.C. and V.L. acknowledge Grant No. MAT2015-68200-C2-2-P from the Spanish Ministry of Economy and Competitiveness. The work of A. S. Ovchinnikov was supported by the Government of the Russian Federation Program (02.A03.21.0006) and by the Ministry of Education and Science of the Russian Federation (Project Nos. 1437 and 2725).
Number-of-Cited-References	20
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	11
Journal-ISO	Phys. Rev. B
Doc-Delivery-Number	DJ9JD