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The Global ETD Search service is a free service for researchers
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1 to 10 of 422 (0.034 seconds)| 1 |
How the ground state in a material will be affected by the spin-phonon interactions between nuclei in diatomic molecular structuresRoca Vich, Isabel January 2016 (has links)
Wave-like phonons are often used to describe the heat capacity in materials. In this report the spin-phonon interaction between nuclei in a diatomic molecular structure is introduced by looking at the Hamiltonian in its ground state. The corresponding Green's functions are computed in order to investigate how this interaction affects the phonons. When calculating the spin, pseudo fermions and tensor products are introduced to make the calculation easier because the spin statistics could be a bit tricky to deal with. Three different cases of how the total interaction Hamiltonian behaves are investigated i.e. when the phonon is coupled to the spin. It turns out that in two of these cases an effect on the phonons can be seen but not in the other case.
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Approche non linéaire de l'auto-localisation des électrons dans un cristal : étude dynamique du modèle spin-boson.Feinberg, Denis, January 1900 (has links)
Th.--Sci. phys.--Grenoble 1, 1984. N°: 127.
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Phonon scattering at surfaces and interfaces studied using heat pulsesHamid, Abd Rani bin Abd January 1989 (has links)
No description available.
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Phonon-limited electron transport in gallium nitride and gallium nitride-based heterostructures, 1760-1851Anderson, David Richard January 2002 (has links)
No description available.
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Some aspects of the electron-phonon interaction in two and three dimensionsRussel, P. A. January 1988 (has links)
No description available.
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Investigation of the interaction between acoustic phonons and the 2DEG of a silicon MOSFETNewton, M. I. N. January 1987 (has links)
No description available.
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Resonant phonon scattering in silicon and sapphireHeraud, A. P. January 1985 (has links)
No description available.
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Phonon emission and reflection by a 2DEG studied with superconducting tunnel junctionsWahab, Y. B. January 1989 (has links)
No description available.
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Hot carrier dynamics in gallium arsenide quantum wellsTurberfield, A. J. January 1988 (has links)
No description available.
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Investigation of Dynamic Behavior of Gold Nanowire By Molecular Dynamics Simulation MethodWeng, Meng-Shiung 07 September 2006 (has links)
The molecular dynamics is employed to investigate the dynamical behavior of helical multi-shell gold nanowire with diameter < 2nm . The study can be arranged into two parts, which are part I ¡§The investigation of the dynamical behavior of 7-1 gold nanowire on different axial strain¡¨ and part II ¡§the investigation of the self-assembly of crossed multi-shell gold nanowires ¡¨. In part I: We investigate the dynamical behavior of 7-1 gold nanowire on different axial strain. Some physical properties can also be determined during the tensile process, which including the strain-stress relationship, yield stress, and bond length. Moreover, vibrational properties under different tensile strains also are discussed . In part II: The aim of this work is to investigate the effect of fixed and flexible boundary conditions during the self-assembly of crossed multi-shell gold nanowires. The atomic trajectory and deformation morphology have been discussed during the assembly process. In addition, the structure transformation has also been observed on the junction by estimating the Angular Correlation Function (ACF).
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