Sökning: "Patrik Henelius"

Hittade 3 avhandlingar innehållade orden Patrik Henelius.

1. 1. Statics, Domain Structure and Dynamics in the Dilute Dipolar Magnet LiHoF4

   Författare :Anders Biltmo; Patrik Henelius; Michel Gingras; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Other technology; Övriga teknikvetenskaper;

   Sammanfattning : .... LÄS MER

3. 2. Spin ice under uniaxial pressure and magnetic frustration in garnets

   Författare :Richard Edberg; Patrik Henelius; Santiago A. Grigera; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; magnetism; fysik; spin is; frustrerad magnetism; värmekapacitet; heat capacity; spin ice; physics; magnetism; Material and Nano Physics; Material- och nanofysik;

   Sammanfattning : Frustration is the inability to simultaneously satisfy all interactions. The interest in magnetic frustration has grown during the last decades. The research has among other findings been promoted by the discovery of spin ice which is a frustrated magnetic compound with an exotic ground state and unusual excitations. LÄS MER

4. 3. Spin ice and demagnetising theory

   Författare :Mikael Twengström; Patrik Henelius; Peter Holdsworth; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Geometrical frustration; spin ice; Monte Carlo simulations; demagnetising theory; special temperatures; Ewald summation; neutron scattering; structure factors; loop algorithms; parallel tempering; frustrated ferromagnets; equilibration issues; long-range interactions; exchange interactions.; Fysik; Physics;

   Sammanfattning : Frustration, or the inability to simultaneously minimise all local interactions is, a phenomenon occurring in a broad number of physical systems. We will in this thesis focus on a class of frustrated ferromagnetic materials called spin ices and how both numerical and experimental techniques can be used to understand their properties. LÄS MER