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(2008)We then consider systems in which the pairing species have different chemical potentials, imposed in our case, with different number densities, leading to a finite 'polarization'. This is of much experimental and theoretical ...
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(2001)Finally, we have calculated the DeybeWaller factor in solid helium for a range of temperatures and densities, and compared the scaling behavior with the predictions of harmonic theory. The first nonGaussian contribution ...
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(1994)Based on Richard P. Feynman's formulation of quantum mechanics, Path Integral Monte Carlo is a computational abinitio method to calculate finite temperature equilibrium properties of quantum manybody systems. As input, ...
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(1990)We study two representative problems related to the dynamics of pattern formation in nonlinear, dissipative systems far from equilibrium. The first problem addresses the dynamical mechanism of velocity and shape selection ...
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(1990)The quaternary material aluminum gallium indium prosphide (($\rm Al\sb{x}Ga\sb{1x})\sb{y}In\sb{1y}P$) is used in the fabrication of visible lasers and light emitting diodes. There are problems in this material related ...
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(2001)In the experimental part, we investigate the microstructures resulting under ionbeam mixing in AgCu multilayers. We find that, regardless of the irradiation temperature, extensive grain growth takes place. In the regime ...
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(2009)Finally, Chapter 5 treats the phase behavior of both additive and nonadditive binary hard disk fluid mixtures, for very large size asymmetries. Using a systematic extrapolation in the nonadditivity parameter I have been ...
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Phase Transformations in Lanthanide Calcium Manganese Oxide: Charge Ordering and Phase Competition (2005)Charge ordering (CO) phase transformations in La1xCa xMnO3 were studied at Ca doping levels x = 0.33, 0.50, 0.67, 0.75 and 0.77. Temperaturecontrolled insitu electron diffraction and high resolution dark field images ...
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(1981)In Part I of this thesis, we present experimental evidence demonstrating that a metalinsulator (MI) phase transition can occur separately from the liquidgas (LG) transition in the exciton/electronhole (eh) gas/eh ...
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Now showing items 428447 of 726