56062 20200221144201.0 doi 10.1103/PhysRevB.93.134424 sideral 94987 ART-2016-94987 eng (orcid)0000-0002-8173-1846 Laliena, V. Incommensurate-commensurate transitions in the monoaxial chiral helimagnet driven by the magnetic field 2016 Access copy available to the general public Unrestricted 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. info:eu-repo/grantAgreement/ES/MINECO/MAT2015-68200-C2-2-P info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.836 2016 PHYSICS, CONDENSED MATTER 18 / 67 = 0.269 2016 Q2 T1 2.339 2016 Electronic, Optical and Magnetic Materials 2016 Q1 Condensed Matter Physics 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0002-3600-1721 Campo, J. Universidad de Zaragoza Kishine, J.I Ovchinnikov, A.S. Togawa, Y. Kousaka, Y. Inoue, K. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 93, 13 (2016), 134424 [9 pp] Phys. Rev. B, Condens. matter mater. phys. Physical Review B. Condensed Matter and Materials Physics 1098-0121 1358982 http://zaguan.unizar.es/record/56062/files/texto_completo.pdf Versión publicada 129395 http://zaguan.unizar.es/record/56062/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:56062 articulos driver 2020-02-21-13:08:52 ARTICLE