Swarup, Swetlana (2019) Some Aspects of Long Range Interaction on Disordered Superconductivity. Masters thesis, Indian Institute of Science Education and Research Kolkata.
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PDF (MS dissertation of Swetlana Swarup (14MS076))
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Abstract
In the present thesis, we aim to study the effects of a long range interaction, in particular a repulsive Yukawa potential, on a disordered s-wave superconductor. In such a case, there are two global competing orders- the charge density wave and superconductivity. With this motivation, normal state problem is studied where the superconductivity is turned off by means of a mean-field theory as a starting point. Thus, charge ordering is investigated in both Hartree and Fock channels. The 2D parameter space of the disorder strength s and range of interaction r₀ is explored to understand how it affects the charge density wave. Our aim is to capture purely the effects of a long range interaction.
| Item Type: | Thesis (Masters) |
|---|---|
| Additional Information: | Supervisor : Prof. Amit Ghosal |
| Uncontrolled Keywords: | Attractive Hubbard Model; Extended Hubbard Model; Mean Field Decomposition; Physics of Disorder; Range of Interaction; Yukawa Potential |
| Subjects: | Q Science > QC Physics |
| Divisions: | Department of Physical Sciences |
| Depositing User: | IISER Kolkata Librarian |
| Date Deposited: | 20 Dec 2019 10:36 |
| Last Modified: | 20 Dec 2019 10:37 |
| URI: | http://eprints.iiserkol.ac.in/id/eprint/891 |
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