Brazilian Journal of Physics
Công bố khoa học tiêu biểu
* Dữ liệu chỉ mang tính chất tham khảo
Sắp xếp:
α-Cluster Optical Potential Model of 40Ca
Brazilian Journal of Physics - Tập 47 - Trang 189-196 - 2017
Elastic scattering of α + 40Ca is analyzed in the framework of the optical
model. We adopted an independent α-cluster model to generate the α-cluster and
matter density of 40Ca. We proposed a parametrized form for the α-cluster
density and fixed its parameters according to the available experimental data
about the α-particle and 40Ca nuclei. The obtained α-cluster density of 40Ca is
used to genera...
Obliquely Propagating Electron Acoustic Shock Waves in Magnetized Plasma
Brazilian Journal of Physics - Tập 48 - Trang 597-603 - 2018
Obliquely propagating electron acoustic shock waves in plasma with stationary
ions, cold and superthermal hot electrons are investigated in magnetized plasma.
Employing reductive perturbation method, Korteweg-de Vries-Burgers equation
(KdVB) is derived in the small amplitude approximation limit. The analytical and
numerical calculations of the KdVB equation show the variation of shock waves
struct...
Fisher Information on the Phase Transition from Regular to Flat Top Optical Pulse in Cubic-Quintic Nonlinear Media
Brazilian Journal of Physics - Tập 54 - Trang 1-5 - 2023
We study the properties of optical pulses in cubic-quintic nonlinear media using
Fisher information. The nonlinear media can support regular (sharp top) and flat
top pulses depending on the type of quintic nonlinearity and the frequency of
the pulse. For defocusing quintic nonlinearity, it holds both regular and flat
top solitons. We find that the Fisher information suddenly drops near the
transit...
Amplitude Death, Bifurcations, and Basins of Attraction of a Planar Self-Sustained Oscillator with Delayed Feedback
Brazilian Journal of Physics - Tập 52 Số 2 - 2022
Time Periodicity and Dynamical Stability in Two-Boson Systems
Brazilian Journal of Physics - Tập 43 - Trang 5-12 - 2013
We calculate the period of recurrence of dynamical systems comprising two
interacting bosons. A number of theoretical issues related to this problem are
discussed, in particular, the conditions for small periodicity. The knowledge
gathered in this way is then used to propose a notion of dynamical stability
based on the stability of the period. Dynamical simulations show good agreement
with the pro...
Electronic Structures and f-d Orbital Hybridization of a Heavy Fermion YbNiGa
Brazilian Journal of Physics - Tập 50 - Trang 35-38 - 2019
The electromagnetic and thermal properties of a heavy fermion YbNiGa are
investigated using first-principle methods with local density approximation
(LDA) and LDA+U approaches. The Yb f-bands are located near the Fermi energy and
hybridized with the Ni-3d states. This hybridization plays important roles to
make characteristics of this material. Band calculation with the LDA framework
does not matc...
First-Principles Study of Pressure-Induced Phase Transition in CuGaO2
Brazilian Journal of Physics - Tập 47 - Trang 42-45 - 2016
We have studied the structural, elastic, electronic properties, and
pressure-induced phase transition of CuGaO2 by using the plane-wave ultrasoft
pseudopotential technique based on the first-principles density-functional
theory (DFT). The obtained ground state properties of three phases were in
agreement with previous works. The calculated enthalpy variations with pressure
showed that the structur...
Correction to: Emergent D-Instanton as a Source of Dark Energy
Brazilian Journal of Physics - - 2019
In the original article Supriya Kar was listed as a co-author without his
permission. The sole author of this article is Deobrat Singh.
Finite Temperatures by Means of Zero Kelvin Kohn-Sham Formalism of Density-Functional Theory
Brazilian Journal of Physics - Tập 49 Số 5 - Trang 615-622 - 2019
Effect of Band Nonparabolicity on the Inter Band Tunneling in Semiconductors
Brazilian Journal of Physics - Tập 48 - Trang 330-341 - 2018
A simple yet generalized theory is developed to study inter band tunneling
property of narrow band gap III–V compound semiconductors. The band structures
of these low band gap semiconductors with sufficiently separated split-off
valance band are usually described by the three energy band model of Kane, so
this has been adopted here for the analysis of interband tunneling property in
the case of In...
Tổng số: 926
- 1
- 2
- 3
- 4
- 5
- 6
- 10