Zobrazeno 1 - 10
of 139
pro vyhledávání: '"G.E. Barberis"'
Publikováno v:
Journal of Magnetism and Magnetic Materials. 377:430-435
Two-magnon Raman scattering is observed in the orthophosphate LiMnPO 4 , carrying quantitative information on the magnetic interactions between local Mn 2+ moments. A simulated annealing fitting procedure of the Raman signal to theoretical curves der
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ca99e24e99525536ae67941ae5cca9e
https://doi.org/10.1016/j.jmmm.2014.10.100
https://doi.org/10.1016/j.jmmm.2014.10.100
Autor:
U. F. Kaneko, David Vaknin, Eduardo Granado, A. F. García-Flores, Paulo F. Gomes, G.E. Barberis, Jiaqiang Yan, Thomas A. Lograsso
Raman scattering experiments on LaFeAsO with splitted antiferromagnetic (T_AFM = 140 K) and tetragonal-orthorhombic (T_S = 155 K) transitions show a quasi-elastic peak (QEP) in B2g symmetry (2 Fe tetragonal cell) that fades away below ~T_AFM and is a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b9d547b5aeefed15097195d44e76136
http://arxiv.org/abs/1702.03774
http://arxiv.org/abs/1702.03774
Autor:
Ivo Vencato, Jesiel F. Carvalho, Ricardo Costa de Santana, R. E. Rapp, Mario Cesar Guillermo Passeggi, Hamilton B. Napolitano, G.E. Barberis, Adailton J. Bortoluzzi, Rafael Calvo
Publikováno v:
Polyhedron. 26:5001-5008
A novel dinuclear copper(II) complex with the amino acid L-arginine (L-arg), with mono and bidentate HPO42- oxoanions and an OH- anion. [Cu2(L-arg)2(mu-HPO4-O)(mu-HPO4-O,O´)(mu-OH)]-.(H3O)+.6H2O (1) was prepared and its structure was determined by X
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb5b46aced85726bef8721d24ea91808
https://doi.org/10.1016/j.poly.2007.07.005
https://doi.org/10.1016/j.poly.2007.07.005
Autor:
G.E. Barberis
Publikováno v:
Physica B: Condensed Matter. 398:468-471
The generation of pseudo-random numbers is one of the interesting problems in Monte Carlo simulations, mostly because the common computer generators produce periodic numbers. We used simple pseudo-random numbers generated with the simplest chaotic sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ac68b2de1cabd26ca5150fb22245bbc
https://doi.org/10.1016/j.physb.2007.04.088
https://doi.org/10.1016/j.physb.2007.04.088
Autor:
G.E. Barberis, Aintzane Goñi, Bryan C. Chakoumakos, Teófilo Rojo, Jerel L. Zarestky, David Vaknin
Publikováno v:
Journal of Magnetism and Magnetic Materials. 234:401-408
Neutron diffraction techniques have been used to determine the magnetic structure of Fe in monoclinic α -Li 3 Fe 2 (PO 4 ) 3 . Rietveld analysis of the room temperature powder diffraction pattern confirms the monoclinic structure of the sample and i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8d1823ae42e2e95eb89259bdda45799
https://doi.org/10.1016/s0304-8853(01)00425-5
https://doi.org/10.1016/s0304-8853(01)00425-5
Publikováno v:
Journal of Materials Chemistry. 10:423-428
Li1 − 3xFexNiPO4 (0 < x < 0.15) solid solution phases have been synthesized by solid state reaction. X-Ray studies on polycrystalline samples show that all phases are isostructural with the parent LiNiPO4 compound, crystallizing in the orthorhombic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0670b27a8afeb38e7e68aed967f4b414
https://doi.org/10.1039/a907862b
https://doi.org/10.1039/a907862b
Autor:
G.E. Barberis, Roberto Cortés, Zurine E. Serna, M. Karmele Urtiaga, M. Gotzone Barandika, Teófilo Rojo
Publikováno v:
Journal of the Chemical Society, Dalton Transactions. :29-34
A nickel(II)tetramer with azide and di-2-pyridyl ketone (dpk) of general formula [Ni(dpk·OH)(N3)]4·2H2O (dpk·OH being the deprotonated gem-diol resulting from hydrolysis of dpk) was synthesized and structurally characterised through X-ray single c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8eccd776819edeaa1c36506a18a5ee5c
https://doi.org/10.1039/a905430h
https://doi.org/10.1039/a905430h
Publikováno v:
Journal of Materials Chemistry. 10:2779-2785
The Li3Fe2(AsO4)3 − x(PO4)x (x = 0, 1, 1.5, 2) solid solution was prepared by the ceramic method. Li3Fe2(AsO4)3 crystallizes in the monoclinic P1121/n space group with the cell parameters, a = 8.608(1), b = 12.215(1), c = 8.929(1) A and γ = 90.76(
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cb950acdd81d985d506457638f40fdf
https://doi.org/10.1039/b002076l
https://doi.org/10.1039/b002076l
Autor:
Aintzane Goñi, Roger Olazcuaga, Teofilo Rojo, G.E. Barberis, Léopold Fournès, N. O. Moreno, Luis Lezama
Publikováno v:
Chemistry of Materials. 12:62-66
Spectroscopic and magnetic studies on α-Li3Fe2(PO4)3 show an interesting behavior below the transition temperature (29 K). The compound orders antiferromagnetically, presenting a weak ferromagnetic moment, which diminishes with temperature. In the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8f0b84fa2ca035ad3cef14fff979b2d
https://doi.org/10.1021/cm991069c
https://doi.org/10.1021/cm991069c
Autor:
Teófilo Rojo, Jerel L. Zarestky, David Vaknin, G.E. Barberis, P.J. Pagliuso, J. E. Ostenson, Bryan C. Chakoumakos, Aintzane Goñi
Publikováno v:
Physical Review B. 60:1100-1110
Neutron diffraction and magnetic susceptibility studies of $({\mathrm{Li}}_{1\ensuremath{-}3x}{\mathrm{Fe}}_{x}){\mathrm{NiPO}}_{4} (x=0$ and $x=0.033)$ compounds reveal remarkable differences between the magnetic properties of pure ${\mathrm{LiNiPO}
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::160eafc011ece31c6dfa9e226789894d
https://doi.org/10.1103/physrevb.60.1100
https://doi.org/10.1103/physrevb.60.1100