Sökning: "multicomponent superconductors"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden multicomponent superconductors.

1. 1. Multicomponent superconductivity : Vortex matter and phase transitions

   Författare :Johan Carlström; Egor Babaev; Leo Radzihovsky; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Superconductivity; Ginzburg Landau; field theory; Iron pnictide;

   Sammanfattning : The topic of this thesis is vortex-physics in multi component Ginzburg- Landau models. These models describe a newly discovered class of super- conductors with multiple superconducting gaps, and possess many properties that set them apart from single component models. LÄS MER

3. 2. Phase transitions and vortex structures in multicomponent superconductors

   Författare :Karl Sellin; Egor Babaev; Astrid S. de Wijn; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; multicomponent superconductors; superconductivity; phase transitions; monte carlo; vortices; vortex structure formation; competing interactions;

   Sammanfattning : Theoretical aspects of multicomponent superconductivity and systemswith competing interactions are studied using Monte Carlo techniques.Motivated by recent experimental and theoretical results of complex struc-ture formation of vortices in multicomponent systems, possible vortex struc-ture formations due to vortex interactions that are not purely attractive orrepulsive are considered. LÄS MER

4. 3. Phase transitions and phase frustration in multicomponent superconductors

   Författare :Daniel Weston; Egor Babaev; Mats Wallin; Ilya Eremin; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysik; Physics;

   Sammanfattning : Multicomponent superconductors described by several complex matter fields have properties radically different from those of their single-component counterparts. Examples include partially ordered phases and spontaneous breaking of time-reversal symmetry due to frustration between Josephson-coupled components. LÄS MER

5. 4. Structure formation, phase transitions and drag interactions in multicomponent superconductors and superfluids

   Författare :Karl Sellin; Egor Babaev; Anatoly Kuklov; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysik; Physics;

   Sammanfattning : Superconductivity and superfluidity are some of the most funda-mental and important phenomena of modern physics. However, muchtheoretical work for such systems so far has been restricted to the one-component case. LÄS MER

7. 5. Vortex-matter in Multi-component Superconductors

   Författare :Johan Carlström; Mats Wallin; Vladimir Krasnov; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Superconductivity;

   Sammanfattning : The topic of this thesis is vortex-physics in multi component Ginzburg- Landau models. These models describe a newly discovered class of supercon- ductors with multiple superconducting gaps, and posses many properties that set them apart from single component models. LÄS MER