Sökning: "Ising model"
Visar resultat 26 - 30 av 31 avhandlingar innehållade orden Ising model.
26. First-principles investigations of ordering in binary alloys
Sammanfattning : The aim of the thesis is to study ordering in binary alloys on the basis of first-principles or {\it ab-initio} techniques employing density functional theory (DFT). The ordering phenomena of materials are of crucial importance for technological applications. LÄS MER
27. Phase transitions in magnetic metamaterials
Sammanfattning : Magnetic metamaterials consisting of arrays of densely packed, two-dimensional nanoscale magnetic islands have degrees of freedom on two separate length scales: inside the islands, and among them. These degrees of freedom can be tuned by e.g. size, shape, island separation and lattice geometry. LÄS MER
28. Characterization of human dopaminergic neurons in the developing mesencephalon and upon differentiation of stem cells- for replacement therapy in Parkinson´s disease
Sammanfattning : Cell-replacement therapy is a promising approach for treating patients with Parkinson ́s disease (PD). For this purpose, there is a need for developing a protocol that can generate high numbers of human transplantable mesencephalic dopaminer- gic (mesDA) neurons. LÄS MER
29. On the Value of Customer Loyalty Programs - A Study of Point Programs and Switching Costs
Sammanfattning : The increased prevalence of customer loyalty programs has been followed by an increased academic interest in schemes. This is partly because the Internet has made competition 'one click away'. It is also because information technology has made it more economical for firms to collect customer information by way of loyalty programs. LÄS MER
30. Dynamics of Magnetic Molecules under Electrical Control
Sammanfattning : This thesis theoretically studies the dynamics of molecular magnets under electrical control. Molecular magnets are nanoscale magnets that can, e.g., consist of single-molecules or single-atoms. LÄS MER