Sökning: "nanoparticle orientation"
Visar resultat 1 - 5 av 9 avhandlingar innehållade orden nanoparticle orientation.
1. Colloidal interactions and orientation of nanocellulose particles
Sammanfattning : Nanoparticles are very interesting building blocks. Their large surface-to-bulk ratio gives them different properties from those of larger particles. Controlling their assembly can greatly affect macroscopic material properties. LÄS MER
2. Experimental and numerical investigations of hydrodynamic focusing of colloidal dispersions
Sammanfattning : Dispersed non-spherical particles are the fundamental constituent of many complex fluids. Such fluids are studied both for their industrial and scientific importance, and for their peculiar functional properties (mechanical, optical, thermal, fluidic). LÄS MER
3. Anisotropy, disorder and frustration in magnetic nanoparticle systems and spin glasses
Sammanfattning : Magnetic properties of nanoparticle systems and spin glasses have been investigated theoretically, and experimentally by squid magnetometry.Two model three-dimensional spin glasses have been studied: a long-range Ag(11 at% Mn) Heisenberg spin glass and a short-range Fe0.5Mn0.5TiO3 Ising spin glass. LÄS MER
4. Theoretical studies of a nanoparticle bridge platform for molecular electronics measurements
Sammanfattning : The main focus of this thesis is the theoretical investigations of a nanogap platform used for molecular electronics measurements under ambient conditions. The nanogap is about 20 nm wide, while the molecules investigated here (octanethiol(OT) and octanedithiol(ODT)) are about 1-1.5 nm long making it impossible to bridge the gap with one molecule. LÄS MER
5. Effects of Spin-Orbit Interactions in Ferromagnetic Metal Nanoparticles
Sammanfattning : This thesis is a theoretical investigation of the effects of spin-orbit (SO) interactions in ferromagnetic metal nano-particles. Part I of the thesis is devoted to an elementary introduction of the research field, including recent experimental advances which partly motivated the work presented here. LÄS MER