000046927 001__ 46927 000046927 005__ 20231127095527.0 000046927 0247_ $$2doi$$a10.1103/PhysRevB.92.125118 000046927 0248_ $$2sideral$$a92248 000046927 037__ $$aART-2015-92248 000046927 041__ $$aeng 000046927 100__ $$aCuartero, V. 000046927 245__ $$aStability of Jahn-Teller distortion ordering in LaM n1-x S cx O3 000046927 260__ $$c2015 000046927 5060_ $$aAccess copy available to the general public$$fUnrestricted 000046927 5203_ $$aWe have investigated the role of Mn3+ Jahn-Teller distortion in driving ferromagnetism in the LaMn1-xScxO3 series. The replacement of Mn by Sc in LaMnO3 decreases the orthorhombic distortion of the Pbnm cell, but the unit cell remains distorted even in the LaScO3 sample. The analysis of the x-ray diffraction patterns indicates a continuous evolution from the typical Jahn-Teller distorted octahedron in LaMnO3 into a nearly regular one in LaScO3. Surprisingly, x-ray absorption spectroscopy measurements at the Mn and Sc K edges reveal the stability of both Jahn-Teller distorted MnO6 octahedron and nearly regular ScO6 octahedron along the whole Sc-substituted series. Moreover, the structure is described as a random distribution of Jahn-Teller distorted MnO6 octahedra spatially ordered as in LaMnO3 and nearly regular ScO6 octahedra. This result contrasts with the pseudocubic phase and the appearance of regular MnO6 octahedra in LaMn1-xGaxO3 for x>0.5. Thus the occurrence of Jahn-Teller distortion strongly depends on the distorted orthorhombic crystallographic structure of the matrix in which the Mn3+ atom is allocated. Besides, a ferromagnetic ground state is observed for x>0.5 in both series independently of the presence (or not) of Jahn-Teller distortions around Mn3+, which discards either the spin flipping or the vibronic superexchange models proposed for the ferromagnetism in LaMn1-xBxO3 (B=Sc or Ga). 000046927 536__ $$9info:eu-repo/grantAgreement/ES/DGA/CAMRADS$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2011-23791$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2012-38213-C02-01 000046927 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000046927 590__ $$a3.718$$b2015 000046927 591__ $$aPHYSICS, CONDENSED MATTER$$b16 / 67 = 0.239$$c2015$$dQ1$$eT1 000046927 592__ $$a2.377$$b2015 000046927 593__ $$aElectronic, Optical and Magnetic Materials$$c2015$$dQ1 000046927 593__ $$aCondensed Matter Physics$$c2015$$dQ1 000046927 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000046927 700__ $$0(orcid)0000-0002-9706-3272$$aBlasco, J.$$uUniversidad de Zaragoza 000046927 700__ $$0(orcid)0000-0002-9029-1977$$aSubías, G.$$uUniversidad de Zaragoza 000046927 700__ $$aGarcía, J. 000046927 700__ $$aMeneghini, C. 000046927 700__ $$aAquilanti, G. 000046927 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada 000046927 773__ $$g92, 12 (2015), 125118 [10 pp.]$$pPhys. Rev. B, Condens. matter mater. phys.$$tPhysical review. B, Condensed matter and materials physics$$x1098-0121 000046927 8564_ $$s3230812$$uhttps://zaguan.unizar.es/record/46927/files/texto_completo.pdf$$yVersión publicada 000046927 8564_ $$s131466$$uhttps://zaguan.unizar.es/record/46927/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000046927 909CO $$ooai:zaguan.unizar.es:46927$$particulos$$pdriver 000046927 951__ $$a2023-11-27-09:45:43 000046927 980__ $$aARTICLE