%0 Journal Article %1 WOS:000369060200119 %A Barbosa, Diego A B %A Lufaso, Michael W %A Reichlova, Helena %A Marti, Xavi %A Rezende, Marcos V S %A Maciel, Adeilton P %A Paschoal, Carlos W A %C PO BOX 564, 1001 LAUSANNE, SWITZERLAND %D 2016 %I ELSEVIER SCIENCE SA %J JOURNAL OF ALLOYS AND COMPOUNDS %K Magnetodielectric; Structural ordering} perovskite; {Double %P 899-905 %R 10.1016/j.jallcom.2015.11.099 %T Ba-doping effects on structural, magnetic and vibrational properties of disordered La2NiMnO6 %V 663 %X Barium-doped La2NiMnO6 double perovskites have been investigated in order to elucidate the role of the B-site doping on its magnetic, dielectric and vibrational properties. In all cases, we have obtained a non-linear dependence with the Barium content signaling that a 5% molar doping renders the maximum B-site ordering. By analyzing a series of gradually doped samples, we have found that the effective magnetic moment in the B-site can be enhanced by a factor of nearly 100% by 5% Ba doping. In order to exclude oxidation state induce changes, XPS and XANES measurements have been carried out concluding that nickel or manganese oxidation states ratio are not modified by the Ba doping. Raman spectroscopy correlates Ba doping with vacancies thus attributing to the latter the role of primary source for structural defects in Ba-La2NiMnO6 samples. This manuscript summarizes key consequences of the B-site ordering which are crucial to address the optimization of the magneto-electric coupling in Ba-La2NiMnO6 double perovskites. (C) 2015 Elsevier B.V. All rights reserved.

@article{WOS:000369060200119, abstract = {Barium-doped La2NiMnO6 double perovskites have been investigated in order to elucidate the role of the B-site doping on its magnetic, dielectric and vibrational properties. In all cases, we have obtained a non-linear dependence with the Barium content signaling that a 5% molar doping renders the maximum B-site ordering. By analyzing a series of gradually doped samples, we have found that the effective magnetic moment in the B-site can be enhanced by a factor of nearly 100% by 5% Ba doping. In order to exclude oxidation state induce changes, XPS and XANES measurements have been carried out concluding that nickel or manganese oxidation states ratio are not modified by the Ba doping. Raman spectroscopy correlates Ba doping with vacancies thus attributing to the latter the role of primary source for structural defects in Ba-La2NiMnO6 samples. This manuscript summarizes key consequences of the B-site ordering which are crucial to address the optimization of the magneto-electric coupling in Ba-La2NiMnO6 double perovskites. (C) 2015 Elsevier B.V. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {PO BOX 564, 1001 LAUSANNE, SWITZERLAND}, author = {Barbosa, Diego A B and Lufaso, Michael W and Reichlova, Helena and Marti, Xavi and Rezende, Marcos V S and Maciel, Adeilton P and Paschoal, Carlos W A}, biburl = {https://www.bibsonomy.org/bibtex/2a2c181ebc776877349da5ab492b3fc94/ppgfis_ufc_br}, doi = {10.1016/j.jallcom.2015.11.099}, interhash = {6aa64a8d845494a93b3b9c7bb3b86acd}, intrahash = {a2c181ebc776877349da5ab492b3fc94}, issn = {0925-8388}, journal = {JOURNAL OF ALLOYS AND COMPOUNDS}, keywords = {Magnetodielectric; Structural ordering} perovskite; {Double}, pages = {899-905}, publisher = {ELSEVIER SCIENCE SA}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Ba-doping effects on structural, magnetic and vibrational properties of disordered La2NiMnO6}, tppubtype = {article}, volume = 663, year = 2016 }