Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Nei F. Oliveira"'
Autor:
C. B. R. Jesus, P. G. Pagliuso, J. B. Leão, D. S. Christovam, G. S. Freitas, J. C. Souza, Nei F. Oliveira, R. Grossi, J. W. Lynn, M. M. Piva, Cris Adriano
Publikováno v:
Physical Review B. 102
We have performed x-ray powder diffraction, magnetization, electrical resistivity, heat capacity, and inelastic neutron scattering (INS) to investigate the physical properties of the intermetallic series of compounds, ${\mathrm{CeCuBi}}_{2\ensuremath
Autor:
P. G. Pagliuso, Armando Paduan-Filho, Nei F. Oliveira, Paul M. Lahti, Rafael S. Freitas, Cris Adriano
Publikováno v:
Polyhedron. 136:2-4
We present a combination of heat capacity and ac susceptibility measurements as a function of temperature and field, of a single crystal of the radical 2-(4,5,6,7-tetrafluorobenzimidazol-2-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-ox
Autor:
Odylio D. Aguiar, Nei F. Oliveira
Publikováno v:
Brazilian Journal of Physics. 46:596-603
This article is an account of the work done in the Mario Schenberg gravitational wave antenna up to date, focusing mainly in the participation of the Laboratorio de Estado Solido e Baixas Temperaturas (LESBT) do Instituto de Fisica da Universidade de
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
2-(3′,5′-Dimethoxy-4′-hydroxyphenyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-1-oxyl (SyrNN) forms a hydrogen bonded network of contacts involving phenolic OH and nitronylnitroxide methyl groups as donors, and nitronylnitroxide NO groups as
Autor:
Vivien Zapf, Alexander Steppke, Eundeok Mun, Stephan Haas, Nei F. Oliveira, L. Yin, Franziska Weickert, Brian L. Scott, Roman Movshovich, Rong Yu, Neil Sullivan, Chao Huan, Tommaso Roscilde, C. F. Miclea, Armando Paduan-Filho, Jian-Sheng Xia
Publikováno v:
Nature. 489:379-384
The low-temperature states of bosonic fluids exhibit fundamental quantum effects at the macroscopic scale: the best-known examples are Bose-Einstein condensation (BEC) and superfluidity, which have been tested experimentally in a variety of different
Autor:
Paul M. Lahti, Nei F. Oliveira, Armando Paduan-Filho, Xavier Gratens, Gonca Seber, Rafael S. Freitas, Joel T. Mague, Valdir Bindilatti, Naoki Yoshioka
Publikováno v:
Journal of the American Chemical Society. 134:3825-3833
Mixtures of 2-(4,5,6,7-tetrafluorobenzimidazol-2-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl (F4BImNN) and 2-(benzimidazol-2-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl (BImNN) crystallize as solid solutions (a
Autor:
Paul M. Lahti, Armando Paduan-Filho, Safo Aboaku, Nei F. Oliveira, John A. Schlueter, Valdir Bindilatti
Publikováno v:
Chemistry of Materials. 23:4844-4856
2-(Meta-aminophenyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl (mAPN) and 2-(para-aminophenyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl (pAPN) were synthesized and subjected to magnetostructural analysis. Both for
Autor:
Eduardo Abramof, Nei F. Oliveira, Valmir Antonio Chitta, Duncan K. Maude, Paulo H. O. Rappl, M. L. Peres, A. Y. Ueta
Publikováno v:
Acta Physica Polonica A. 119:602-605
were observed. This indicates the presence of spin‐orbit coupling phenomena and we showed that the Rashba eect is the main mechanism responsible for this spin‐orbit coupling. Using the model developed by Iordanskii et al., we fitted the experimen
Autor:
Paul M. Lahti, Joel T. Mague, Armando Paduan-Filho, Martha Baskett, A. Chandrasekaran, Nei F. Oliveira
Publikováno v:
Inorganic Chemistry. 50:5060-5074
One pair of reactants, Cu(hfac)(2) = M and the hinge-flexible radical ligand 5-(3-N-tert-butyl-N-aminoxylphenyl)pyrimidine (3PPN = L), yields a diverse set of five coordination complexes: a cyclic loop M(2)L(2) dimer; a 1:1 cocrystal between an M(2)L
Autor:
B. Díaz, Nei F. Oliveira, Eduardo Abramof, Eduardo Granado, Valmir Antonio Chitta, André Bohomoletz Henriques, Paulo H. O. Rappl
Publikováno v:
International Journal of Modern Physics B. 23:2979-2983
In this work we use magnetic resonant x-ray diffraction to study the magnetic properties of a 1.5 µm EuTe film and an EuTe / PbTe superlattice (SL). The samples were grown by molecular beam epitaxy on (111) oriented BaF 2 substrates. The measurement