Sökning: "Petra Jönsson"
Hittade 3 avhandlingar innehållade orden Petra Jönsson.
1. 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
2. Magnetic properties of hard-soft amorphous nanolaminates
Sammanfattning : Amorphous magnetic thin film heterostructures and multilayers are often used in data storage as well as spintronic devices. Spintronics will help the next generation of nano-electronic devices to increase their memory and processing power and reduce their power consumption. LÄS MER
3. Metallic Amorphous Thin Films and Heterostructures with Tunable Magnetic Properties
Sammanfattning : The primary focus of this thesis is to study the effect of doping on magnetic properties in amorphous Fe100−xZrx alloys. Samples with compositions of x = 7,11.6 and 12 at.% were implanted with different concentrations of H. LÄS MER