Search for dissertations about: "electronic band structure"

Showing result 21 - 25 of 270 swedish dissertations containing the words electronic band structure.

  1. 21. Physics of Strong Correlations in Electronic Structure and Model Calculations

    Author : Urban Lundin; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Strongly correlated electrons; Electronic structure calculations; Fysik; Physics; Fysik; fysik; Physics;

    Abstract : Using field theoretical methods models of strongly correlated electrons have been investigated. Application to electronic structure calculations has been made. READ MORE

  2. 22. Theoretical Investigations of Selected Heavy Elements and Metal-hydrogen Systems by Means of Electronic Structure Calculations

    Author : Per Andersson; Manuel RichterI; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; actinides; metal-hydrogen systems; DFT; band structure; non-commensurate magnetism; Fysik; Physics; Fysik; fysik; Physics;

    Abstract : Using ab initio electronic structure calculations based on density functional theory the crystal, electronic and magnetic structures of selected materials have been investigated. The materials which are the subjects of these investigations can be divided into two groups. READ MORE

  3. 23. Atomic and Electronic Structure of III-V Semiconductor Surfaces

    Author : Örjan Olsson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; semiconductor; GaAs; photoelectron; scanning tunneling microscopy; valence band; core level; reconstruction; InAs; surface; InSb;

    Abstract : The atomic and electronic structure of clean and Cs-perturbed III-V semiconductors was studied by angle-resolved photoelectron spectroscopy (ARPES), surface core level spectroscopy (SCLS), and scanning tunneling microscopy (STM). The work can be divided into three parts, dealing with low-index sur-faces, high-index surfaces, and special features of InAs. READ MORE

  4. 24. InAs Nanowire Devices and Circuits

    Author : Kristofer Jansson; Institutionen för elektro- och informationsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Modelling; Circuit; Simulation; Ballistic; Capacitor; Transistor; RF; Band structure; III-V semiconductor; InAs; MOSFET; Metal-oxide-semiconductor field-effect transistor; Nanowire; Amplifier;

    Abstract : Since the introduction of the transistor and the integrated circuit, the semiconductor industry has developed at a remarkable pace. By continuously fabricating smaller and faster transistors, it has been possible to maintain an exponential increase in performance, a phenomenon famously described by Moore’s Law. READ MORE

  5. 25. On protein structure, function and modularity from an evolutionary perspective

    Author : Robert Pilstål; Björn Wallner; Maria Sunnerhagen; Mauno Vihinen; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; bioinformatics; structure; biology; intrinsical; disorder; protein; sequence; evolution; mutation; epistasis; function; allostery; dynamics; simulation; prediction; graph; network; bioinformatik; struktur; biologi; strukturbiologi; intrinsiellt; oordnad; protein; sekvens; evolution; mutation; epistasis; funktion; allosteri; dynamik; simulation; prediktion; graf; nätverk;

    Abstract : We are compounded entities, given life by a complex molecular machinery. When studying these molecules we have to make sense of a diverse set of dynamical nanostructures with wast and intricate patterns of interactions. READ MORE