Magnetic frustration in partially ordered double perovskites Ln3Ni2RuO9 (Ln = La, Nd)

Autor: Susana García-Martín, A. J. Dos Santos-Garcia, J. Romero de Paz, Regino Sáez-Puche, Jagannatha Gopalakrishnan, E. Morán-Miguélez, Oscar Fabelo, Sourav Laha, Srinivasan Natarajan, Elena Solana-Madruga

Publikováno v: Journal of Alloys and Compounds, ISSN 0925-8388, 2019-10, Vol. 806
Archivo Digital UPM
Universidad Politécnica de Madrid

Ln3Ni2RuO9 (Ln = La, Nd) oxides (prepared by a solid state metathesis route) adopt a monoclinic (P21/n) A2BB'O6 double perovskite structure wherein the two independent octahedral 2c and 2d sites are occupied by Ni2+ and (Ni2+1/3Ru5+2/3) cations, resp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db59dec8c3e9de2bba5c6cb8fa07c5f5
https://oa.upm.es/67693/

Phase transition induced by pressure in TbCrO4 oxide: Relationship structure–properties

Autor: J. Romero de Paz, E. Climent, Nobuyuki Taira, J. M. Gallardo, R. Saez Puche

Publikováno v: Journal of Alloys and Compounds. 488:524-527

Terbium chromate TbCrO4, which has been described as belonging to the zircon-type structure showing tetragonal symmetry, space group I41/amd, has been prepared as a dimorphic compound. When the zircon-type TbCrO4 polymorph is treated at 40 kbar and 8

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::89a0c822156793a7eab1a783ac7ff87f
https://doi.org/10.1016/j.jallcom.2008.10.060

Neutron powder diffraction study on Nd2BaCuO5 oxide

Autor: M. T. Fernández-Díaz, Enrique Jimenez-Melero, José Luis Martínez, R. Saez Puche, J. Romero de Paz, E. Climent

Publikováno v: Sáez Puche, R, Climent, E, Jimenez-Melero, E, De Paz, J R, Martínez, J L & Fernández-Díaz, M T 2006, ' Neutron powder diffraction study on Nd2BaCuO5 oxide ', Journal of Alloys and Compounds, vol. 408-412, pp. 613-617 . https://doi.org/10.1016/j.jallcom.2004.12.060

The magnetic behaviour of Nd2BaCuO5 oxide has been studied by means of neutron powder diffraction at low temperatures. This oxide behaves as antiferromagnetic with a Néel temperature of 7.8 K, and the magnetic structure can be described on the basis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5374acece1f090c81275f9597bc7aef5
https://doi.org/10.1016/j.jallcom.2004.12.060

Synthesis and magnetic behaviour of La2−xRxBaCuO5 oxides (R=Pr and Nd; x=1 and 2)

Autor: J. Romero de Paz, Regino Sáez-Puche, R. Sanchez‐Capuchino, E. Climent

Publikováno v: Journal of Alloys and Compounds. 374:146-150

La 2− x R x BaCuO 5 oxides are prepared for R=Pr and Nd and x =1 and 2. These oxides crystallise with the Nd 2 BaPtO 5 -type structure, S.G. P4/mbm. The rather unusual ferromagnetic behaviour found for La 2 BaCuO 5 oxide, T C =5.2 K, is drastically

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::25048d3a74ca7e45c3f159faf38e1a5f
https://doi.org/10.1016/j.jallcom.2003.11.076

Spin Glass Behavior of New Perovskites Ba2In2−xCoxO5 (0.5 ⩽x⩽1.70)

Autor: Pedro Núñez, A. D. Lozano Gorrin, M. A. López de la Torre, R. Saez Puche, T. J. Romero De Paz

Publikováno v: Journal of Solid State Chemistry. 165:254-260

New oxides of general formula Ba2In2−xCoxO5 (0.5 ⩽x⩽1.70) have been synthesized as polycrystalline materials and fully characterized by means of X-rays. They are all isostructural and crystallize in a perovskite-type structure, showing cubic sy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d065049a156a74846476c67547be1cd6
https://doi.org/10.1006/jssc.2002.9515