A tool development of rigorous Schr�ger/Luttinger based Monte Carlo codes for scaled MOS studies in terms of crystal orientation, channel direction, mechanical stress and applied voltage

2006 ◽  
Author(s):  
Takako Okada
Keyword(s):  
Monte Carlo ◽  
Mechanical Stress ◽  
Applied Voltage ◽  
Crystal Orientation ◽  
Tool Development

The influence of crystal orientation on the change in Li chemical potential of LiCoO2 under mechanical stress

2017 ◽  
Vol 299 ◽  
pp. 8-12 ◽  
Author(s):  
Mahunnop Fakkao ◽  
Yuta Kimura ◽  
Keita Funayama ◽  
Takashi Nakamura ◽  
Naoki Kuwata ◽  
...  
Keyword(s):  
Mechanical Stress ◽  
Crystal Orientation ◽  
Chemical Potential

scholarly journals Understanding filamentary growth in electrochemical metallization memory cells using kinetic Monte Carlo simulations

Nanoscale ◽  
2015 ◽  
Vol 7 (29) ◽  
pp. 12673-12681 ◽  
Author(s):  
Stephan Menzel ◽  
Philip Kaupmann ◽  
Rainer Waser
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Mechanical Stress ◽  
Kinetic Monte Carlo ◽  
Monte Carlo Model ◽  
Memory Cells ◽  
Kinetic Monte Carlo Simulations

A kinetic Monte Carlo model for ECM cells is presented that explains the influence of mechanical stress on filamentary growth.

Modeling of the Signal Induced by an Incident Radiation in Semi-Insulating GaAs Detectors

1997 ◽  
Vol 487 ◽  
Author(s):  
Adriano Cola ◽  
Lorenzo Vasanelli ◽  
Lino Reggiani
Keyword(s):  
Monte Carlo ◽  
Physical Interpretation ◽  
Applied Voltage ◽  
Slow Component ◽  
Incident Radiation ◽  
External Radiation ◽  
Slow Time ◽  
Relative Contribution ◽  
Charge Signal ◽  
Monte Carlo Simulator

AbstractWe develop a Monte Carlo simulator of the charge signal induced by an external radiation on a semi-insulating GaAs detector. The role played by trapping and detrapping processes and the dynamics of generated carriers are investigated. The relative contribution to the charge signal of fast and slow time components as well as the time constant of the slow component are studied as a function of the applied voltage. Present findings provide a physical interpretation of available experimental results.

Influence of DC Voltage Bias on the Converse Magnetoelectric Effect Response in PZT/Terfenol-D/PZT Laminate Composites

2010 ◽  
Author(s):  
Joshua L. Hockel ◽  
Tao Wu ◽  
Gregory P. Carman
Keyword(s):  
Experimental Data ◽  
Mechanical Stress ◽  
Applied Voltage ◽  
Magnetoelectric Effect ◽  
Laminate Composites ◽  
Dc Voltage ◽  
Voltage Bias

The converse magnetoelectric effect (CME) response of a Pb(Zr0.52Ti0.48)O3 (PZT)/ Tb0.30Dy0.7Fe2 (Terfenol-D)/PZT laminate to applied DC voltage bias has been investigated. Experimental data demonstrates that the CME coefficient αCME is highly dependent on applied voltage bias. The voltage bias is shown to increase the piezomagnetic coefficient δλ/δB of the Terfenol-D and by extension the αCME, however an optimal αCME has yet to be identified. The ME laminate exhibits considerable gains in αCME (up to 100%) due in part to the improved magnetostrictive response of Terfenol-D under piezoelectric-induced mechanical stress.

Outbursts of comet Schwassmann-Wachmann 1, and the cloud of interplanetary boulders

1974 ◽  
Vol 22 ◽  
pp. 307 ◽  
Author(s):  
Zdenek Sekanina
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Interplanetary Space ◽  
Porous Matrix ◽  
Maximum Diameter ◽  
Expansion Velocity ◽  
Solid Constituent ◽  
Meteoric Material ◽  
Periodic Comet

AbstractIt is suggested that the outbursts of Periodic Comet Schwassmann-Wachmann 1 are triggered by impacts of interplanetary boulders on the surface of the comet’s nucleus. The existence of a cloud of such boulders in interplanetary space was predicted by Harwit (1967). We have used the hypothesis to calculate the characteristics of the outbursts – such as their mean rate, optically important dimensions of ejected debris, expansion velocity of the ejecta, maximum diameter of the expanding cloud before it fades out, and the magnitude of the accompanying orbital impulse – and found them reasonably consistent with observations, if the solid constituent of the comet is assumed in the form of a porous matrix of lowstrength meteoric material. A Monte Carlo method was applied to simulate the distributions of impacts, their directions and impact velocities.

Monte Carlo Algorithms for Moments of Transition Arrays

1988 ◽  
Vol 102 ◽  
pp. 79-81
Author(s):  
A. Goldberg ◽  
S.D. Bloom
Keyword(s):  
Monte Carlo ◽  
State Vector ◽  
Basis Vector ◽  
Collective State ◽  
Dispersion Characteristics ◽  
Dipole Strength ◽  
The Third ◽  
Monte Carlo Algorithms ◽  
Third Moment ◽  
Very High

AbstractClosed expressions for the first, second, and (in some cases) the third moment of atomic transition arrays now exist. Recently a method has been developed for getting to very high moments (up to the 12th and beyond) in cases where a “collective” state-vector (i.e. a state-vector containing the entire electric dipole strength) can be created from each eigenstate in the parent configuration. Both of these approaches give exact results. Herein we describe astatistical(or Monte Carlo) approach which requires onlyonerepresentative state-vector |RV> for the entire parent manifold to get estimates of transition moments of high order. The representation is achieved through the random amplitudes associated with each basis vector making up |RV>. This also gives rise to the dispersion characterizing the method, which has been applied to a system (in the M shell) with≈250,000 lines where we have calculated up to the 5th moment. It turns out that the dispersion in the moments decreases with the size of the manifold, making its application to very big systems statistically advantageous. A discussion of the method and these dispersion characteristics will be presented.

Spherulitic crystal growth in the prodissoconch larval of Crassostrea virginica

1983 ◽  
Vol 41 ◽  
pp. 518-519
Author(s):  
George G. Cocks ◽  
Louis Leibovitz ◽  
DoSuk D. Lee
Keyword(s):  
Crystal Structure ◽  
Crassostrea Virginica ◽  
Crystal Orientation ◽  
Developmental Changes ◽  
Gastrula Stage ◽  
Orthorhombic Crystal ◽  
Orthorhombic Crystal Structure ◽  
Stages Of Growth ◽  
Early Stages ◽  
Initial Deposition

Our understanding of the structure and the formation of inorganic minerals in the bivalve shells has been considerably advanced by the use of electron microscope. However, very little is known about the ultrastructure of valves in the larval stage of the oysters. The present study examines the developmental changes which occur between the time of conception to the early stages of Dissoconch in the Crassostrea virginica(Gmelin), focusing on the initial deposition of inorganic crystals by the oysters.The spawning was induced by elevating the temperature of the seawater where the adult oysters were conditioned. The eggs and sperm were collected separately, then immediately mixed for the fertilizations to occur. Fertilized animals were kept in the incubator where various stages of development were stopped and observed. The detailed analysis of the early stages of growth showed that CaCO3 crystals(aragonite), with orthorhombic crystal structure, are deposited as early as gastrula stage(Figuresla-b). The next stage in development, the prodissoconch, revealed that the crystal orientation is in the form of spherulites.

The Interpretation of Crystal Lattice Images

1972 ◽  
Vol 30 ◽  
pp. 550-551
Author(s):  
J. M. Cowley ◽  
Sumio Iijima
Keyword(s):  
Crystal Orientation ◽  
Diffraction Theory ◽  
Phase Changes ◽  
Electron Wave ◽  
Crystal Lattices ◽  
Heavy Atoms ◽  
Lattice Images ◽  
The Right ◽  
Intuitive Interpretation ◽  
Suitable Approximation

The imaging of detailed structures of crystal lattices with 3 to 4Å resolution, given the correct conditions of microscope defocus and crystal orientation and thickness, has been used by Iijima (this conference) for the study of new types of crystal structures and the defects in known structures associated with fluctuations of stoichiometry. The image intensities may be computed using n-beam dynamical diffraction theory involving several hundred beams (Fejes, this conference). However it is still important to have a suitable approximation to provide an immediate rough estimate of contrast and an evaluation of the intuitive interpretation in terms of an amplitude object.For crystals 100 to 150Å thick containing moderately heavy atoms the phase changes of the electron wave vary by about 10 radians suggesting that the “optimum defocus” theory of amplitude contrast for thin phase objects due to Scherzer and others can not apply, although it does predict the right defocus for optimum imaging.

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