Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Arrondo C"'
The magneto-optical properties of titanium dioxide systems are related to the presence of impurity states in the band gap due to oxygen vacancies. To understand about the interplay between localized electrons and structural distortions at the vacancy
Externí odkaz:
http://arxiv.org/abs/2305.05419
Publikováno v:
Phys.Chem.Chem.Phys., 2015, 17, 18577
State-to-state reactive integral cross sections (ICS) are often affected by quantum mechanical resonances, especially at relatively low energies. An ICS is usually obtained by summing partial waves at a given value of energy. For this reason, the kno
Externí odkaz:
http://arxiv.org/abs/2204.05849
Publikováno v:
Phys. Rev. B 88, 155328 (2013)
Focusing on the efficient probe and manipulation of single-particle spin states, we investigate the coupled spin and orbital dynamics of a spin 1/2 particle in a harmonic potential subject to ultrastrong spin-orbit interaction and external magnetic f
Externí odkaz:
http://arxiv.org/abs/1401.4554
Publikováno v:
Phys. Rev. B 87, 081410 (R), 2013
We consider the relaxation of a spin qubit in a quantum dot propagating as a whole in a one-dimensional semiconductor with hyperfine coupling. We show that this motion leads to qualitatively new features in this process compared to static quantum dot
Externí odkaz:
http://arxiv.org/abs/1303.5273
For nanostructured materials, strain is of fundamental importance in stabilizing a specific crystallographic phase, modifying electronic properties, and in consequence their magnetism when it applies. Here we describe a magnetic shape memory alloy in
Externí odkaz:
http://arxiv.org/abs/1010.1110
We investigate the electronic and magnetic properties of (Ga,Mn)N nanocrystals using the density functional theory. We study both wurtzite and zinc-blende structures doped with one or two substitutional Mn impurities. For a single Mn dopant placed cl
Externí odkaz:
http://arxiv.org/abs/1003.0599
Publikováno v:
JOURNAL OF APPLIED PHYSICS 104, 044308 (2008)
We investigate acceptor and donor states in GaN nanocrystals doped with a single substitutional impurity. Quantum dots (QD's) of zinc-blende structure and spherical shape are considered with the radius ranging from 4.5 to 67.7 A. The size-dependent e
Externí odkaz:
http://arxiv.org/abs/1003.0298
Publikováno v:
APPLIED PHYSICS LETTERS 95, 043111 (2009)
We investigate the optical properties of (Cd,Mn)Te quantum dots (QDs) by looking at the excitons as a function of the Mn impurities positions and their magnetic alignments. When doped with two Mn impurities, the Mn spins, aligned initially antiparall
Externí odkaz:
http://arxiv.org/abs/1003.0306
Publikováno v:
PHYSICAL REVIEW B 79, 155319 (2009)
We investigate the electronic and magnetic properties of Mn-doped CdTe nanocrystals (NCs) with 2 nm in diameter which can be experimentally synthesized with Mn atoms inside. Using the density-functional theory, we consider two doping cases: NCs conta
Externí odkaz:
http://arxiv.org/abs/1003.0333
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