Results 221 to 230 of about 14,925 (256)

Electronic structure of ellipsoidally deformed quantum dots

Journal of Physics: Condensed Matter, 2001
Using a three-dimensional local spin-density functional method, we investigate the electronic structure of quasi two-dimensional ellipsoidal quantum dots with elliptical deformation. Changes in the electron addition energy spectra and spin polarization are investigated as a function of the number of electrons and the elliptical deformation on the ...
Lee, IH, Kim, YH Kim, Yong-Hoon, Ahn, KH
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Size effect on the bandgap change of quantum dots: Thermomechanical deformation

Physics Letters A, 2021
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Superlattice deformation in quantum dot films on flexible substrates via uniaxial strain

Nanoscale Horizons, 2023
Superlattice deformation in PbS quantum dot thin films introduced by uniaxial strain: In situ GISAXS study on the correlation of morphology and photoluminescence.
Julian E. Heger, Wei Chen, Huaying Zhong, Tianxiao Xiao, Constantin Harder, Fabian A. C. Apfelbeck, Alexander F. Weinzierl, Regine Boldt, Lucas Schraa, Eric Euchler, Anna K. Sambale, Konrad Schneider, Matthias Schwartzkopf, Stephan V. Roth, P. Müller-Buschbaum   +14 more
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Vertical quantum dots with elliptically deformed cross sections

Physica B: Condensed Matter, 1999
Abstract Few-electron vertical quantum dot artificial atoms with circular and elliptically deformed cross sections are investigated. Because of the high symmetry of the lateral confining potential, circular dots show a pronounced shell structure. With the lifting of level degeneracies, even a small deformation in shape is found to radically alter ...
D.G Austing, S Sasaki, S Tarucha, S.M Reimann, M Koskinen, M Manninen   +5 more
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Dynamic Projection Mapping onto Deforming Non-Rigid Surface Using Deformable Dot Cluster Marker

IEEE Transactions on Visualization and Computer Graphics, 2017
Dynamic projection mapping for moving objects has attracted much attention in recent years. However, conventional approaches have faced some issues, such as the target objects being limited to rigid objects, and the limited moving speed of the targets. In this paper, we focus on dynamic projection mapping onto rapidly deforming non-rigid surfaces with ...
Gaku Narita, Yoshihiro Watanabe, Masatoshi Ishikawa   +2 more
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Display of virtual braille dots by lateral skin deformation: feasibility study

ACM Transactions on Applied Perception, 2005
When a progressive wave of localized deformations occurs tangentially on the fingerpad skin, one typically experiences the illusion of a small object sliding on it. This effect was investigated because of its potential application to the display of Braille. A device was constructed that could produce such deformation patterns along a line.
Vincent Lévesque, Jérôme Pasquero, Vincent Hayward, Maryse Legault   +3 more
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A Deformation Induced Quantum Dot

2008
Due to their extraordinary electronic properties, Quantum Dots (QDs) are potentially very useful nanoscale devices and research tools. As their electrons are confined in all three dimensions, the energy spectra of QDs is descrete, similar to atoms and molecules.
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Lattice deformation and interdiffusion of InAs quantum dots on GaAs(100)

Journal of Applied Physics, 2001
InAs quantum dots (QDs) on GaAs(100) grown by molecular-beam epitaxy were structurally characterized by ion channeling. Lattice deformation of the InAs QDs and diffusion of Ga atoms into InAs QDs were clearly observed to depend strongly on the InAs coverage.
N. Matsumura, T. Haga, S. Muto, Y. Nakata, N. Yokoyama   +4 more
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Correlation and Entanglement in Elliptically Deformed Two-Electron Quantum Dots

Few-Body Systems, 2010
We study quantum correlation in a two-dimensional system of two Coulombically interacting electrons trapped in an anisotropic harmonic potential in dependence on the interaction strength. The linear entropy and von Neumann entropy that measure the entanglement between the electrons are compared with the correlation energy and the statistical ...
Anna Okopińska, Przemysław Kościk
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Spin-flip relaxation due to phonon macroscopic deformation potential in quantum dots

Microelectronics Journal, 2005
Abstract We have calculated the spin-flip relaxation rates of electrons in a single CdTe spherical quantum dot due to the interaction with acoustical phonons via macroscopic deformation potential, also called the ripple mechanism. The relaxation of spin states is possible considering that the applied magnetic field and the coupling between valence ...
A. M. Alcalde, O. O. Diniz Neto, G. E. Marques   +2 more
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