000062014 001__ 62014
000062014 005__ 20180723113746.0
000062014 0247_ $$2doi$$a10.1103/PhysRevB.95.224410
000062014 0248_ $$2sideral$$a101049
000062014 037__ $$aART-2017-101049
000062014 041__ $$aeng
000062014 100__ $$0(orcid)0000-0002-8173-1846$$aLaliena, V.
000062014 245__ $$aNucleation, instability, and discontinuous phase transitions in monoaxial helimagnets with oblique fields
000062014 260__ $$c2017
000062014 5060_ $$aAccess copy available to the general public$$fUnrestricted
000062014 5203_ $$aThe phase diagram of the monoaxial chiral helimagnet as a function of temperature (T) and magnetic field with components perpendicular (Hx) and parallel (Hz) to the chiral axis is theoretically studied via the variational mean-field approach in the continuum limit. A phase transition surface in the three-dimensional thermodynamic space separates a chiral spatially modulated phase from a homogeneous forced ferromagnetic phase. The phase boundary is divided into three parts: two surfaces of second-order transitions of instability and nucleation type, in DeGennes terminology, are separated by a surface of first-order transitions. Two lines of tricritical points separate the first-order surface from the second-order surfaces. The divergence of the period of the modulated state on the nucleation transition surface has a logarithmic behavior typical of a chiral soliton lattice. The specific heat diverges on the nucleation surface as a power law with logarithmic corrections, while it shows a finite discontinuity on the other two surfaces. The soliton density curves are described by a universal function of Hx if the values of T and Hz determine a transition point lying on the nucleation surface; otherwise, they are not universal.
000062014 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/MAT2015-68200-C2-2-P
000062014 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000062014 590__ $$a3.813$$b2017
000062014 591__ $$aPHYSICS, CONDENSED MATTER$$b18 / 67 = 0.269$$c2017$$dQ2$$eT1
000062014 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000062014 700__ $$0(orcid)0000-0002-3600-1721$$aCampo, J.$$uUniversidad de Zaragoza
000062014 700__ $$aKousaka, Y.
000062014 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000062014 773__ $$g95 (2017), 224410 [9 pp]$$pPhys. Rev. B$$tPhysical Review B$$x2469-9950
000062014 8564_ $$s1169319$$uhttps://zaguan.unizar.es/record/62014/files/texto_completo.pdf$$yVersión publicada
000062014 8564_ $$s132093$$uhttps://zaguan.unizar.es/record/62014/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000062014 909CO $$ooai:zaguan.unizar.es:62014$$particulos$$pdriver
000062014 951__ $$a2018-07-23-11:30:05
000062014 980__ $$aARTICLE