Vol. 36 - n. 2A - June - 2006
12th Brazilian Workshop on Semiconductor Physics (BWSP-12)

PAGES ARTICLES
iii Foreword

Bulk, defects and impurities

245-247 Theory of Hydrogen Complexes in MnxGa1-xAs Dilute Magnetic Semiconductors
P. Giannozzi, F. Filippone, and A. Amore Bonapasta
248-251 Modeling Chaotic Current Oscillations in Semi-Insulating GaAs with Rate-Equations of Impact Ionization and Field-Enhanced Trapping
H. A. Albuquerque, R. L. da Silva, R. M. Rubinger, A. G. de Oliveira, G. M. Ribeiro, and W. N. Rodrigues
252-254 Variable Range Hopping Conduction in Low-Temperature Molecular Beam Epitaxy GaAs
R. M. Rubinger, H. A. Albuquerque, R. L. da Silva, A. G. de Oliveira, G. M. Ribeiro, W. N. Rodrigues, and C. P. L Rubinger
255-257 Non-Linear Electron Mobility in n-Doped III-Nitrides
Clóves G. Rodrigues, Áurea R. Vasconcellos, and Roberto Luzzi
258-260 Low Frequency Oscillations and Bifurcation Diagram in Semi-Insulating GaAs Samples
R. L. da Silva, H. A. Albuquerque, R. M. Rubinger, A. G. de Oliveira, G. M. Ribeiro, and W. N. Rodrigues
261-263 First Principles Calculations of As Impurities in the Presence of a 90$^o$ Partial Dislocation in Si
T. M. Schmidt, J. T. Arantes, and A. Fazzio
264-266 Dynamics of Defects and Surface Structure Formation in Reticulated Vitreous Carbon
E. S. Gonçalves, M. C. Rezende, and N. G. Ferreira
267-269 Microscopic Structure of Nickel-Dopant Centers in Diamond
R. Larico, W. V. M. Machado, J. F. Justo, and L. V. C. Assali
270-273 Analysis of Er3 + Incorporation in SnO2 by Optical Investigation
Evandro A. de Morais, Luis V. A. Scalvi, Márcio R. Martins, and Sidney J. L. Ribeiro
274-277 Growth of Mercuric Iodide Crystals
J. C. Ugucioni, M. Ferreira, F. Fajardo, and M. Mulato
278-281 Photoquenching Indications of a Thermally Triggered Transition Between Two Different EL2 Metastable States in GaAs
P. P. Fávero and J. M. R. Cruz
282-285 XAS of High Pressure Xe Clusters in Amorphous Carbon and Computational Simulation for the fcc and hcp Xenon Crystalline Phases
Myriano H. Oliveira Jr and Francisco C. Marques
286-290 Improved Electronic Structure and Optical Properties of sp-Hybridized Semiconductors Using LDA+USIC
Clas Persson and Susanne Mirbt

Surfaces and interfaces

291-293 The Oxidation Mechanism of CdTe (110) Surface
F. D. Kiss and A. C. Ferraz
294-297 Volmer-Weber Growth of CdTe on Silicon: A One-Dimension Monte Carlo Model
S. O. Ferreira and S. C. Ferreira Jr.
298-301 Structural and Electronic Properties of the SiC (100) Surfaces
J. S. Soares and H. W. Leite Alves
302-304 Ab Initio Determination of the (100) Surfaces Phonon Dispersions of the SiC
J. S. Soares and H. W. Leite Alves
305-308 Kinetic Monte Carlo Simulation of the Nitridation of the GaAs (100) Surfaces
A. P. Castro and H. W. Leite Alves
309-312 Glycine Adsorption on Silicon (001)
A. C. Ferraz and R. Miotto
313-316 Numerical Simulation of HFCVD Process Used for Diamond Growth
Divani C. Barbosa, Hélcio F. V. Nova, and Mauricio R. Baldan
317-319 Characterization of CdTe Thin Films Grown on Glass by Hot Wall Epitaxy
Sukarno Olavo Ferreira, F\'{a}bio Fagundes Leal, Tatiana Estorani de Faria, José Eduardo de Oliveira, Paulo Motisuke, and Eduardo Abramof
320-323 Stoichiometry, Surface and Structural Characterization of Lead Iodide thin Films
J. F. Condeles, R. C. Z. Lofrano, J. M. Rosolen, and M. Mulato
324-327 Characterization of SnTe Films Grown by Molecular Beam Epitaxy
U. A. Mengui, E. Abramof, P. H. O. Rappl, and A. Y. Ueta
328-331 Shape Transition and Dislocation Nucleation in Strained Epitaxial Islands
J. Jalkanen O. Trushin, E. Granato, S. C. Ying, and T. Ala-Nissila
332-335 Hollow Cathode Magnetron Deposition of AlN thin Films: Crystalline Structure and Morphology
R. S. Pessoa, G. Murakami, G. Petraconi, H. S. Maciel, I. C. Oliveira, and K. G. Grigorov

Heterostructures, quantum wells and superlattices

336-339 Magnetotransport in AlxGax-1As Quantum Wells with Different Potential Shapes
N. C. Mamani, C. A. Duarte, G. M. Gusev, A. A. Quivy, and T. E. Lamas
340-342 Memory Effects in Backscattering of Two-Dimensional Electrons in Corrugated Systems
N. M. Sotomayor, J. F. da Rocha Neto, and G. M. Gusev
343-346 Influence of Minority Carrier Transport in the Optical Properties of Double Barrier Diodes
I. Camps, A. Vercik, L. F. dos Santos, and Y. Galvão Gobato
347-349 Energy Levels in Si and SrTiO3-Based Quantum Wells with Charge Image Effects
T. A. S. Pereira, M. G. Bezerra, J. A. K. Freire, V. N. Freire, and G. A. Farias
350-353 Infinite Potential Barrier and Hydrostatic Pressure Effects on Impurity-Related Optical Absorption Spectra in GaAs Double Quantum Wells
N. Raigoza, A. L. Morales, and C. A. Duque
354-356 Magnetopolaron Effects on the Intradonor 1s-2p + Transition Energies in a GaAs - AlGaAs Double Quantum Well
F. A. P. Osório, Paulo C. M. Machado, and A. N. Borges
357-360 Dynamical Localization of the Hofstadter Spectra
P. H. Rivera and P. A. Schulz
361-364 Growth and Structural Characterization of PbTe/PbEuTe Double Barrier
A. M. P. dos Anjos, E. Abramof, and P. H. O. Rappl
365-368 Limitation of Electron Mobility in Modulation-Doped In0.53Ga0.47As/InP Quantum Wells at Low Temperatures
F. M. S. Lima, A. B. Veloso, A. L. A. Fonseca, and O. A. C. Nunes

Nanostructures

369-371 Conductance of Three-Dimensional Cross Junctions in the Quantum Ballistic Regime
Luis C. O. Dacal and Erasmo A. de Andrada e Silva
372-374 Electron-Phonon Scattering in Graded Quantum Dots
G. S. Diniz, Fanyao Qu, O. O. Diniz Neto, and A. M. Alcalde
375-378 Hydrogenated Ge Nanocrystals: Band Gap Evolution with Increasing Size
P. Alfaro, A. Miranda, A. E. Ramos, and M. Cruz-Irisson
379-382 Fractal Conductance Fluctuations in Electron Billiards: A Random Matrix Theory Approach
F. A. Pinheiro and C. H. Lewenkopf
383-386 Magneto-Optics of Layers of Semiconductor Quantum Dots and Nano-Rings
O. Voskoboynikov, C. M. J. Wijers, J. L. Liu, and C. P. Lee
387-390 Binding Energy and Photoionization Cross-Section in GaAs Quantum Well-Wires and Quantum Dots: Magnetic Field and Hydrostatic Pressure Effects
J. D. Correa, N. Porras-Montenegro, and C. A. Duque
391-393 The Effects of the Plasmon-LO Phonon Interaction on the Critical Densities of RPA Approach in a Quasi-One-Dimensional System
P. C. M. Machado, F. A. P. Osório, and A. N. Borges
394-396 Synthesis and Characterization of PbS Quantum Dots Embedded in Oxide Glass
R. S. Silva, A. F. G. Monte, P. C. Morais, A. M. Alcalde, Fanyao Qu, and N. O. Dantas
397-400 Electronic Transport Through a Quantum Wire with a Side-Coupled Quantum Dot
T. Lobo, M. S. Figueira, and M. E. Foglio
401-404 Electronic Transport Through a Single-Wall Carbon Nanotube with a Magnetic Impurity
T. Lobo, M. S. Figueira, and M. S. Ferreira
405-407 InGaAs Embedding of Large InAs Quantum Dots Obtained by Pulsed In Deposition for Long-Wavelength Applications
T. E. Lamas and A. A. Quivy
408-411 Conductance Through Two Quantum Dots in a Ring: Magnetic Flux Dependence
V. M. Apel, Maria A. Davidovich, G. Chiappe, and E. V. Anda
412-414 Characterization and Properties of CdO Nanocrystals Incorporated in Polyacrylamide
P. A. Radi, A. G. Brito-Madurro, J. M. Madurro, and N. O. Dantas
415-418 Intersubband Excitations at Finite Temperatures and their Roles in Different Quasi-One-Dimensional Systems
Marcos R. S. Tavares and Guo-Qiang Hai
419-422 Coherent Properties and Rabi Oscillations in Two-Level Donor Systems
A. Latgé, F. J. Ribeiro, A. Bruno-Alfonso, L. E. Oliveira, and H. S. Brandi
423-426 Ballistic Transport in Open Quantum Dots: Scar Wavefunctions and Resonance Line Shapes
M. Mendoza and P. A. Schulz
427-429 Synthesis and Characterisation of CdS Nanoparticles in Mesoporous Copolymer Template
A. F. G. Monte, N. O. Dantas, P. C. Morais, and D. Rabelo
430-433 Effects of Plasma Interaction on a Random Array of Quantum Dots
E. de P. Abreu and P. D. Emmel
434-437 Effects of Varying Curvature and Width on the Electronic States of GaAs Quantum Rings
A. Bruno-Alfonso and T. A. de Oliveira
438-449 Optical Properties of Ellipsoidal CdSe Quantum Dots
W. S. Ferreira, J. S. de Sousa, J. A. K. Freire, G. A. Farias, and V. N. Freire
440-442 Optical Properties of Carbon Nanotubes under External Electric Fields
M. Pacheco, Z. Barticevic, A. Latgé, and C. G. Rocha
443-446 Spin Relaxation and g-Factor Manipulation in Quantum Dots
Carlos F. Destefani and Sergio E. Ulloa

New materials and devices

447-450 Electronic Band-Edge Structure, Effective Masses, and Optical Absorption of Si1tx Gex using an Extended FPLAPW/VCA/LDA+U Computational Method
Clas Persson, Omer Nur, Magnus Willander, Erasmo A. de Andrada e Silva, and Antonio Ferreira da Silva
451-454 Semiconductor Characteristics of Nd Doped PbO-Bi2O3-Ga2O3 Films
Luciana R. P. Kassab, Ronaldo D. Mansano, Luís da S. Zambom, and Vanessa D. Del Cacho
455-458 Frenkel-Exciton-Polaritons in Organic Microcavities
Hashem Zoubi and G. C. La Rocca
459-461 Delocalized States in Damaged DNA
R. A. Caetano and P. A. Schulz
462-465 Mechanical and Vibrational Properties of Carbon Nitride Alloys
A. Champi and F. C. Marques
466-469 Morphological Study of Polycrystalline SiGe Alloy Deposited by Vertical LPCVD
R. C. Teixeira, I. Doi, J. A. Diniz, J. W. Swart, and M. B. P. Zakia
470-473 Calculations of the Atomic and the Electronic Structures of 4d-Transition-Metal Nitrides
R. de Paiva, R. A. Nogueira, and J. L. A. Alves
474-477 Lead Telluride p-n Junctions for Infrared Detection: Electrical and Optical Characteristics
A. S. Barros, E. Abramof, and P. H. O. Rappl
478-481 SnO2 Extended Gate Field-Effect Transistor as pH Sensor
P. D. Batista, M. Mulato, C. F. de O. Graeff, F. J. R. Fernandez, and F. das C. Marques

Spintronics

482-487 Spin Dynamics of Electrons and Holes in p-Doped InAs/GaAs Quantum Dots
P.-F. Braun, L. Lombez, X. Marie, B. Urbaszek, T. Amand, P. Renucci, J.-L. Gauffier, V. K. Kalevich, K. V. Kavokin, O. Krebs, and P. Voisin
488-491 Spin Valve Effect and Hall Resistance in a Wide Parabolic Well
C. A. Duarte, G. M. Gusev, A. A. Quivy, and T. E. Lamas
492-495 A Selfconsistent Calculation of the Transport Properties of a Double Barrier Spin Filter
S. S. Makler, C. F. Ritter, and I. C. da Cunha Lima

Organic semiconductors

496-498 Surface Morphology and Optical Characterization of OC1OC6-PPV Films
A. Marletta, C. A. Olivati, M. Ferreira, M. L. Vega, D. T. Balogh, R. M. Faria, and O. N. Oliveira Jr.
499-500 Near-Infrared Emission of Nd-PSS Films
Marcelo C. Silva, Fernando H. Cristovan, Reinaldo Ruggiero, W. O. Cruz, and A. Marletta
501-504 Ab Initio Calculation of the Dynamical Properties of PPP and PPV
R. L. de Sousa and H. W. Leite Alves