Zobrazeno 1 - 10
of 36
pro vyhledávání: '"D A W Soares"'
Autor:
M. R. Baldissera, M. R. A da Silva, C. A. Silveira, R. M. Lima, S. A. Maia, M. R. da Silva, D. A. W. Soares, R. Gimenes
Publikováno v:
Cerâmica, Vol 60, Iss 353, Pp 52-56 (2014)
Atualmente há uma crescente demanda no cenário mundial com relação ao tratamento de resíduos industriais, dentre estes o fenol e pilhas inutilizadas. Óxidos e cerâmicas a base de ferro, tais como ferritas são utilizadas como catalisadores no
Externí odkaz:
https://doaj.org/article/d1446eb02f014182a2a10640a8cd534d
Autor:
Eduardo Abramof, I. F. Costa, S. de Castro, M. L. Peres, Paulo H. O. Rappl, U. A. Mengui, D. A. W. Soares
Publikováno v:
Physical Review B. 104
In this work, we investigated magnetotransport properties in epitaxial heterostructure of $\mathrm{Sn}\mathrm{Te}\text{/}{\mathrm{Sn}}_{1\ensuremath{-}x}{\mathrm{Eu}}_{x}\mathrm{Te}$ under dark and infrared light illumination. The longitudinal resist
Autor:
D. A. W. Soares, S. de Castro, F. S. Pena, Eduardo Abramof, Steffen Wiedmann, M. L. Peres, Paulo H. O. Rappl
Publikováno v:
Physical Review B, 103, 20
Physical Review B, 103
Physical Review B, 103
We present here the magnetotransport experiment performed with a magnetic field up to 30 T on a 10 nm-wide $p$-type PbTe quantum well. Pronounced Shubnikov--de Haas oscillations and the integer quantum Hall effect are clearly observed, demonstrating
Autor:
Sara Elisa Diniz, Luís Costa, D. A. W. Soares, Eva Campos Pereira, Joao Maia Rosa, Filipa Pereira, Rita Sapage
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The authors present two isolated chaput-tillaux fractures in an adult skeleton. A high level of suspicion is required to prevent diagnostic failure. Computerized tomography scan detects hidden fractures and enables a more detailed preoperative assess
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa89c195a499003d73a7a23f54fe411b
Publikováno v:
Journal of Alloys and Compounds. 749:734-740
Photoconductivity investigation is performed on Zn1-xCdxO films and a transition from positive to negative photoconductivity is observed at room temperature as Cd concentration x is varied. Low and high Cd-content samples are studied by temperature d
Autor:
K. Bolaños, L. M. B. Vargas, D. A. W. Soares, S. de Castro, M. L. Peres, M. J. da Silva, M. P. F. de Godoy
Publikováno v:
Journal of Applied Physics. 130:095701
We report on the observation of the Shubnikov–de Haas oscillation in a polycrystalline ZnO/CdO heterostructure grown on a silicon substrate by a spray pyrolysis technique in temperatures below 6 K. From the analysis of these quantum oscillations, w
Autor:
F. S. Pena, C.E.R.F. Vieira, D. da Cruz Alves, D. P. A. Holgado, D. A. W. Soares, M. L. Peres, M. J. da Silva, A. K. Okazaki, P. H. de Oliveira Rappl, L. M. B. Vargas, M. P. F. de Godoy, Eduardo Abramof
Publikováno v:
Materials Research Bulletin. 138:111213
In this work, we have investigated the heat sensitivity of a Zn1-xCdxO (x = 0.03 - 1) films obtained by spray-pyrolysis under the influence of atmospheric air, considering the substrate type, air temperature, and Cd concentration. We found a transiti
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 127:114575
We investigate here the magneto-transport properties of a 10 nm-wide p-type PbTe single quantum well doped with BaF2 as a function of temperature in the presence and absence of infrared light. Magnetoresistance measurements indicated the presence of
Autor:
Paulo H. O. Rappl, S. de Castro, D. P. A. Holgado, Celso I. Fornari, A. K. Okazaki, M. L. Peres, Hektor Monteiro, K. Bolaños, Eduardo Abramof, D. A. W. Soares, F. S. Pena
Publikováno v:
Applied Physics Letters. 117:102108
This work presents the results of magnetotransport measurements performed on a 156 nm-thick Bi2Te3 epitaxial film in the temperature range of 1.9–300 K, showing Shubnikov–de Haas oscillations for temperatures below 50 K. A detailed analysis of os
Autor:
P. C. O. Braga, M. L. Peres, Eduardo Abramof, M. J. P. Pirralho, Paulo H. O. Rappl, D. A. W. Soares, F. S. Pena, Celso I. Fornari
Publikováno v:
Physical Review B. 95
We investigated the photoconductivity effect in $p$-type $\mathrm{P}{\mathrm{b}}_{1\ensuremath{-}x}\mathrm{E}{\mathrm{u}}_{x}\mathrm{Te}$ films for $x=0.01$, 0.02, 0.03, 0.05, and 0.06 at $T=300\phantom{\rule{0.16em}{0ex}}\mathrm{K}$. The measurement