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Showing 1 to 20 of 32 for “"electron-phonon interaction"”.
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The electron-phonon interaction in normal metals
Massachusetts Institute of Technology. Dept. of Physics. Thesis. 1967. Ph.D.
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Density Functional Study of Fullerene-Based Solids: Crystal Structure, Doping, and Electron -Phonon Interaction
… T c (up to 40 K in Cs3C60). Ab initio electronic structure methods are able to contribute to our understanding of these materials by providing electron densities, band structures, density-of-states, binding energies, and even the electron-phonon coupling. Because of the increasing …
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Density Functional Study of Fullerene-Based Solids: Crystal Structure, Doping, and Electron-Phonon Interaction
Submitted by Meng Tao (mengtao2@illinois.edu) on 2012-11-14T17:43:19Z No. of bitstreams: 1 Romero_Nichols.pdf: 6491565 bytes, checksum: ee1998ac696a941ac9ea121899acb702 (MD5)
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Part I. Tunnelling in Superconductors: Second-Order Processes and Lifetime Effects. Part Ii. A Contribution to the Theory of the Electron-Phonon Interaction
Made available in DSpace on 2015-05-12T17:12:32Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6402296.PDF: 3522713 bytes, checksum: a1c4ee6e761e643ef112879955191d1e (MD5) Previous issue date: 1963
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Resonant Raman scattering studies of III-V semiconductor microstructures
… carrier dynamics both directly and via the electron-phonon interaction. We have examined three physical systems accentuating three aspects of Raman utility. Al$\sb{\rm x}$Ga$\sb{\rm 1-x}$As alloy work emphasizes electronic behavior, migration enhanced epitaxy (MEE) studies highlight …
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First principles Monte Carlo simulation of charge transport in semiconductors
… of the detailed mixing between Bloch and Tamm electronic states in the interface region; this is of critical importance when a transmission or reflection is accompanied by large changes in perpendicular wavevector, and in the presence of multiple transmission and reflection channels. The …
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A study of superconducting lead-indium alloys subjected to hydrostatic pressure using the electron tunneling technique
… the vibrational spectrum of the lattice and the electron-phonon interaction of a metal in both the normal and superconducting states. Specifically, the effects of pressure induced changes on the phonon spectrum F(ω) weighted by the electron-phonon coupling function α<sup>2</sup>(ω), the …
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Resonance Raman Scattering Studies of Gallium-Arsenide - Aluminum-Arsenide Superlattices
… resonance Raman scattering studies of folded LA phonons and quantized LO phonons in several GaAs-AlAs superlattices. The motivation for this work was to study the electronic structure and the electron-phonon interaction in these structures. The samples were not intentionally doped. The Raman …
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Electron tunneling into superconducting mercury films below one degree Kelvin
… on the strong-coupling theory. The effective phonon spectrum and the complex energy gap function for mercury are thereby derived. Values for the electron self energy function, the electron renormalization function, Coulomb pseudopotentia1, and the electron-phonon interaction constant are also …
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Effects of vacancies and electron temperature on the electron phonon coupling in cubic silicon carbide and their connection to the inelastic thermal spike
<p>“The electron-phonon interaction is an important interaction in many solids as it influences transport phenomena and related quantities such as the electrical and thermal conductivities, especially in nuclear and space applications. The importance of the electron-phonon interaction in primary …
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Ab initio study of electron transport in lead telluride
… progress, current understanding of the electron transport in PbTe is based on either band structure simulated using first-principles in combination with constant relaxation time approximation or empirical models, both requiring adjustable parameters obtained by fitting experimental data. …
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Thermal boundary resistance
… has peen modified so as to include the effect of phonon attenuation near the interface. The modified theory is in good agreement below 0.2 K with present measurements on metal-dielectric interfaces and with previous measurements at liquid He-solid interfaces. The influence of the electron-phonon …
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Resonant Raman scattering studies of III-V semiconductor microstructures
… carrier dynamics both directly and via the electron-phonon interaction. We have examined three physical systems accentuating three aspects of Raman utility. AlxGa 1_xAs alloy work emphasizes electronic behavior, migration enhanced epitaxy (MEE) studies highlight structural results, and a …
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Nanoscale electron, phonon and spin transport in thermoelectric materials
… more detailed understanding of the transport and interaction of fundamental energy carriers, such as electrons and phonons in most semiconductors, and magnons in magnetic materials. These understandings have been achieved through the development of both first-principles simulations and …
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High pressure spectroscopic studies of organic device materials
… been used to disentangle inter- and intra-chain interactions. Raman study of this system shows a strong electron-phonon interaction between the Raman phonon and the electronic continuum. Photoluminescence and phosphorescence studies of a ladder type poly(para-phenylene) (PhLPPP) under pressure …
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Influence of Structural Relaxation Upon the Low Temperature Properties of Metallic Glasses
… glasses. We have analyzed the influence of the electron-phonon interaction upon the phonon thermal conductivity (kappa)(,ph) (T < 1K) in PdSiCu. Our quantitative results agree well with theoretical prediction. We have found no effect upon (kappa)(,ph) due to boundary scattering in our samples. …
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Expanding the Phase Space of Photons in Matter: From High-Throughput Screening to Atom-by-Atom Engineering
… systems that evade plasmonic losses through the electron-phonon interaction, and (re)discover general physical laws that govern the geometries of photonic eigenstates.
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Interlayer Defect Effects on the Phonon Properties of Bilayer Graphene and its Nanoribbon
Phonon properties of AB (Bernal) stacked bilayer graphene (BLG) with various types of defects have been investigated theoretically. Forced Vibrational (FV) method has been employed to compute the phonon modes of disordered BLG. A downward linear shift of E2g mode frequencies has been observed with …
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Izovalentiškai legiruotų cinko selenido scintiliacinių kristalų priemaišinės liuminescencijos tyrimai /
… of defect-related luminescence mechanisms in isoelectronically doped semiconductor ZnSe scintillators. The study provides a deeper insight into the basic mechanisms of defect-related luminescence in these scintillation crystals and to relate the luminescence efficiency and response time …
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Izovalentiškai legiruotų cinko selenido scintiliacinių kristalų priemaišinės liuminescencijos tyrimai /
… of defect-related luminescence mechanisms in isoelectronically doped semiconductor ZnSe scintillators. The study provides a deeper insight into the basic mechanisms of defect-related luminescence in these scintillation crystals and to relate the luminescence efficiency and response time …
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