000032198 001__ 32198
000032198 005__ 20210121082900.0
000032198 0247_ $$2doi$$a10.1038/srep14475
000032198 0248_ $$2sideral$$a92220
000032198 037__ $$aART-2015-92220
000032198 041__ $$aeng
000032198 100__ $$0(orcid)0000-0002-8505-5232$$aRodríguez-Velamazán, J.A.
000032198 245__ $$aMagnetically-induced ferroelectricity in the (ND 4) 2 [FeCl 5 (D 2 O)] molecular compound
000032198 260__ $$c2015
000032198 5060_ $$aAccess copy available to the general public$$fUnrestricted
000032198 5203_ $$aThe number of magnetoelectric multiferroic materials reported to date is scarce, as magnetic structures that break inversion symmetry and induce an improper ferroelectric polarization typically arise through subtle competition between different magnetic interactions. The (NH 4) 2 FeCl 5 (H 2 O)] compound is a rare case where such improper ferroelectricity has been observed in a molecular material. We have used single crystal and powder neutron diffraction to obtain detailed solutions for the crystal and magnetic structures of (NH 4) 2 FeCl 5 (H 2 O)], from which we determined the mechanism of multiferroicity. From the crystal structure analysis, we observed an order-disorder phase transition related to the ordering of the ammonium counterion. We have determined the magnetic structure below T N, at 2 €‰K and zero magnetic field, which corresponds to a cycloidal spin arrangement with magnetic moments contained in the ac-plane, propagating parallel to the c-axis. The observed ferroelectricity can be explained, from the obtained magnetic structure, via the inverse Dzyaloshinskii-Moriya mechanism.
000032198 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/MAT2011-27233-C02-02$$9info:eu-repo/grantAgreement/ES/MICINN/MAT2010-16981
000032198 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000032198 590__ $$a5.228$$b2015
000032198 591__ $$aMULTIDISCIPLINARY SCIENCES$$b7 / 62 = 0.113$$c2015$$dQ1$$eT1
000032198 592__ $$a2.034$$b2015
000032198 593__ $$aMultidisciplinary$$c2015$$dQ1
000032198 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000032198 700__ $$aFabelo, O.
000032198 700__ $$0(orcid)0000-0003-0828-3212$$aMillán, Á.$$uUniversidad de Zaragoza
000032198 700__ $$0(orcid)0000-0002-3600-1721$$aCampo, J.$$uUniversidad de Zaragoza
000032198 700__ $$aJohnson, R.D.
000032198 700__ $$aChapon, L.
000032198 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000032198 773__ $$g5 (2015), 14475 [14 pp.]$$pSci. rep.$$tScientific Reports$$x2045-2322
000032198 8564_ $$s1257684$$uhttps://zaguan.unizar.es/record/32198/files/texto_completo.pdf$$yVersión publicada
000032198 8564_ $$s102103$$uhttps://zaguan.unizar.es/record/32198/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000032198 909CO $$ooai:zaguan.unizar.es:32198$$particulos$$pdriver
000032198 951__ $$a2021-01-21-08:15:21
000032198 980__ $$aARTICLE