000062040 001__ 62040
000062040 005__ 20180723113746.0
000062040 0247_ $$2doi$$a10.1103/PhysRevB.95.174439
000062040 0248_ $$2sideral$$a101073
000062040 037__ $$aART-2017-101073
000062040 041__ $$aeng
000062040 100__ $$0(orcid)0000-0002-8505-5232$$aRodríguez-Velamazán, J. Alberto
000062040 245__ $$aMagnetic-field-induced change of magnetoelectric coupling in the hybrid multiferroic (N D4)2[FeC l5· D2 O]
000062040 260__ $$c2017
000062040 5060_ $$aAccess copy available to the general public$$fUnrestricted
000062040 5203_ $$aIn this paper, we elucidate the changes of magnetoelectric coupling mechanism in different zones of the rich magnetic field-temperature (B-T) phase diagram of the molecular multiferroic (NH4)2[FeCl5·H2O], which represents one of the rare cases where improper ferroelectricity has been observed in a hybrid material. We have recently proposed a mechanism of multiferroicity in zero magnetic field in the deuterated form of this material from a detailed determination of its crystal and magnetic structures. The proposed magnetic structure at zero magnetic field corresponds to a cycloidal spin arrangement that gives rise to a ferroelectric polarization through the spin current mechanism induced via the inverse Dzyaloshinskii-Moriya interaction. In this paper, we present a single-crystal neutron diffraction study under external magnetic field, aimed at elucidating the evolution of the magnetic structure under applied magnetic field, and determine the mechanism of magnetoelectric coupling, which allows us to describe an unprecedented change from spin current to spin-dependent p-d hybridization mechanism.
000062040 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/MAT2015-68200-C2-2-P
000062040 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000062040 590__ $$a3.813$$b2017
000062040 591__ $$aPHYSICS, CONDENSED MATTER$$b18 / 67 = 0.269$$c2017$$dQ2$$eT1
000062040 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000062040 700__ $$aFabelo, Oscar
000062040 700__ $$0(orcid)0000-0002-3600-1721$$aCampo, Javier$$uUniversidad de Zaragoza
000062040 700__ $$aMillán, Ángel
000062040 700__ $$aRodríguez-Carvajal, Juan
000062040 700__ $$aChapon, Laurent C.
000062040 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000062040 773__ $$g95, 17 (2017), 174439 [6 pp]$$pPhys. Rev. B$$tPhysical Review B$$x2469-9950
000062040 8564_ $$s956919$$uhttps://zaguan.unizar.es/record/62040/files/texto_completo.pdf$$yVersión publicada
000062040 8564_ $$s137236$$uhttps://zaguan.unizar.es/record/62040/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000062040 909CO $$ooai:zaguan.unizar.es:62040$$particulos$$pdriver
000062040 951__ $$a2018-07-23-11:30:09
000062040 980__ $$aARTICLE