Sökning: "jellium"

Visar resultat 1 - 5 av 14 avhandlingar innehållade ordet jellium.

  1. 1. Electronic effects at metallic surfaces and interfaces : image-state formation and charge redistribution

    Författare :Stella Papadia; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; effective-medium theory; charge redistribution; heat of solution; multiple-reflection; LDA; density-functional theory; image-state; image-potential-induced resonance; LMTO-ASA; exchange-corelation potential; jellium; metallic superlattices;

    Sammanfattning : .... LÄS MER

  3. 2. Metal Cluster Reactivity. Adsorption of small molecules in biomolecular collisions

    Författare :Mats Andersson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; O2; CO; ionization potential; Con; Fen; NO; sticking probability; laser ionization; D2; Wn; Cun; Rhn; reaction probability; cluster; jellium model; Nbn; metal cluster reactivity; N2; time-of-flight mass spectrometry; Nin;

    Sammanfattning : Metal clusters can be characterized as the tiniest possible metal particles, containing only an easily counted number of atoms. In this work, reactions between metal clusters and diatomic molecules have been investigated. We have constructed an experimental set-up to produce and detect clusters, and to investigate their chemical reactivity. LÄS MER

  4. 3. Interatomic total-energy potentials for atomistic simulations of metallic systems

    Författare :Jan Hartford; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; materials science; atom-in-jellium; atomistic approaches; DFT; GGA-PW91; density functional; effective medium theory; EMT; inhomogeneous electron gas; model potential; generalized gradient approximation;

    Sammanfattning : .... LÄS MER

  5. 4. Models of Auger Neutralization and Tunneling at Metal Surfaces

    Författare :Tony Fondén; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis consists of a theoretical study of electron transfer at metal surfaces. It considers two types of electron transfer (electron tunneling and Auger neutralization) that both can be used as a spectroscopy to investigate the surface electronic structure. LÄS MER

  7. 5. Giant Dipole Resonances as Probes of Local Environment in Molecules, Clusters and Solidsl

    Författare :Jarek Luberek; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; single center; photoionization; fullerene; coupled channels; LDA; giant dipole resonance; embedded; time-dependent local density;

    Sammanfattning : In this thesis, I study effects of the local environment on the giant dipole resonances (GDR) in lanthanides and actinides. The effects of embedding in jellium, bonding in small molecules and incorporation into different fullerene systems are studied. LÄS MER