000070611 001__ 70611
000070611 005__ 20200221144304.0
000070611 0247_ $$2doi$$a10.1088/1742-6596/712/1/012119
000070611 0248_ $$2sideral$$a106084
000070611 037__ $$aART-2016-106084
000070611 041__ $$aeng
000070611 100__ $$0(orcid)0000-0002-9029-1977$$aSubias, G.$$uUniversidad de Zaragoza
000070611 245__ $$aDependence of the Jahn-Teller distortion in LaMn1-xScxO3 on the isovalent Mn-site substitution
000070611 260__ $$c2016
000070611 5060_ $$aAccess copy available to the general public$$fUnrestricted
000070611 5203_ $$aWe investigated the relative importance of removing the Mn3+ Jahn-Teller distortion in driving ferromagnetism in LaMn1-xScxO3 combining x-ray powder diffraction and x-ray absorption spectroscopy at the Mn and Sc K-edges. By increasing the Sc content, the orthorhombic distortion of the Pbnm cell in LaMnO3 decreases but the unit-cell remains slightly distorted in LaScO3. Besides, the nearly tetragonal-distorted MO6 in LaMnO3 continuously evolves into a nearly regular one in LaScO3. On the other hand, x-ray absorption spectra show that the MnO6 octahedron remains Jahn-Teller distorted and the ScO6 octahedron is nearly regular along the whole series. Moreover, the ordering of the Mn3+ Jahn-Teller distortion is not disrupted in the ab plane for any Sc concentration. This contrasts with the Gasubstituted compounds, where a regular MnO6 is found for x > 0.5. However, both LaMn0.5Sc0.5O3 and LaMn0.5Ga0.5O3 show ferromagnetic behavior independently of the presence (or not) of Jahn-Teller distorted Mn3+. Thus, our results point to the Mn-sublattice dilution as the main effect in driving ferromagnetism in these manganites over local structure effects previously proposed by the spin flipping or the vibronic superexchange models.
000070611 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E69$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2012-38213-C02-01
000070611 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000070611 592__ $$a0.24$$b2016
000070611 593__ $$aPhysics and Astronomy (miscellaneous)$$c2016$$dQ3
000070611 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000070611 700__ $$aCuartero, V.
000070611 700__ $$aBlasco, J.
000070611 700__ $$aGarcia, J.
000070611 700__ $$aMeneghini, C.
000070611 700__ $$aAquilanti, G.
000070611 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000070611 773__ $$g712 (2016), 012119 [4 pp]$$pJ. Phys.: Conf. Ser.$$tJournal of physics. Conference series$$x1742-6588
000070611 8564_ $$s174162$$uhttp://zaguan.unizar.es/record/70611/files/texto_completo.pdf$$yVersión publicada
000070611 8564_ $$s99781$$uhttp://zaguan.unizar.es/record/70611/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000070611 909CO $$ooai:zaguan.unizar.es:70611$$particulos$$pdriver
000070611 951__ $$a2020-02-21-13:34:20
000070611 980__ $$aARTICLE