Search for dissertations about: "Dimers"

Showing result 1 - 5 of 157 swedish dissertations containing the word Dimers.

  1. 1. Quantum mechanical models of nanomagnetism in transition metal clusters and diluted magnetic semiconductors

    Author : Olof Strandberg; Matematisk fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; diluted magnetic semiconductors; Mn As; Ga; transition metal clusters; magnetic anisotropy; Nanomagnetism; quantum geometric phases; Chern numbers; effective spin Hamiltonians; dimers;

    Abstract : This dissertation investigates nanomagnetism in small transition metal clusters and the diluted magnetic semiconductor (Ga,Mn)As. We derive quantum mechanical models aimed at a realistic description of the low energy physics in these systems. READ MORE

  2. 2. Experimental studies of dimers and clusters

    Author : Mats Doverstål; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Molekylärspektroskopi;

    Abstract : .... READ MORE

  3. 3. Liquid Crystalline SIloxane Dimers - Advanced Materials with Enhanced Properties

    Author : Nils Olsson; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; 45 degree tilt angle; dimer; antiferroelectric; fluorinated; siloxane; polymer; liquid crystal; macrocycle; ferroelectric;

    Abstract : The liquid crystal state is a complex state with many kinds of different molecular attractive and repulsive forces that results in various kinds of phases. Since the pioneering works by Vorländer in the early 20th century, liquid crystal research has to a great extent been depending on careful systematic studies of the structure/property relationships in series of similar liquid crystalline materials. READ MORE

  4. 4. Towards First-Principles Understanding of Biomolecular Adsorption

    Author : Svetla Chakarova Käck; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; DFT; phenol; adenine; graphite; biomolecules; van der Waals interactions; denaturation; protein; lattice models; PAH dimers; adsorption;

    Abstract : A fundamental understanding of the interactions of biomolecules, such as proteins and DNA, with surfaces is of immense importance in numerous applications and poses a true challenge for theory. Density functional theory (DFT) is a quantum-mechanical tool well established for its ability to balance large system size with good accuracy in first-principles studies. READ MORE

  5. 5. Gating mechanisms of ion channels : lifetime properties of gramicidin A dimers in lipid bilayer membranes

    Author : Avi A. L. Ring; Uppsala universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : .... READ MORE