Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"surface phase transition"”.
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Magnetic and critical behavior of thin terbium(0001)/tungsten(110) films studied by electron capture spectroscopy (ECS)
… Using electron capture spectroscopy (ECS), the surface electron spin polarization of the Tb(0001) films is studied as a function of temperature. The topmost layer is found to order ferromagnetically below a surface Curie temperature T$\sb{\rm C\sb s}$ = 249.96 K, which lies above both the bulk …
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Photoemission study of some novel materials: rare earth/transition metal interface, Ba06K04BiO3 and AlPdMn
… materials: (a) Ce epitaxial growth on W (110) surfaces; (b) Eu epitaxial growth on Ta (110) surfaces; (c) Sm epitaxial growth on Ta (110) surfaces; (d) quasicrystalline AlPdMn; (e) superconducting Ba[subscript]1-xK[subscript] xBiO[subscript]3. In the case of rare earth overlayers on transition …
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Theoretical Studies of Particle/Polymer Mixtures
… The theory is then applied to study the phase behaviour of particle/polymer mixtures in electrolyte solutions wherein the particles are charged. Thus the particles have a combination of depletion attraction and screened electrostatic repulsion. We show that a generalized potential of mean …
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AUGER ELECTRON SPECTROSCOPY OF CRYOGENIC MATRIX ISOLATED METAL ATOMS AND DIRECT RECOIL SPECTROSCOPY (DRS), SIMS AND XPS STUDIES ON TITANIUM AND PIQ
… energies, causes profound graphitization of the surface. DRS and XPS data show that appreciable amounts of nitrogen and oxygen can be implanted into the polymer, and that the implanted species are stable up to 300$\sp\circ$C. DRS evidence suggests that water dissociates on the 3 keV argon ion …
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Surface phases and surface phase transitions: A renormalization-group calculation
The aim of this thesis is to study the surface phases, surface phase transitions, and thermodynamic properties of the semi-infinite Ising model in two and three dimensions. We show how position-space renormalization group methods, previously used in homogeneous bulk calculations, can be generalized …
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Surface structure and composition determination by low-energy electron scattering and Monte Carlo simulations
<p>This thesis reports on surface and surface alloy structural and compositional determination with low-energy electron scattering and Monte Carlo simulations. Low-energy electron diffraction (LEED) technique and the newly developed low-energy electron microscopy (LEEM) IV technique are used to …