dc.contributor |
Wasserman, Allen |
|
dc.contributor |
Warren, William W. |
|
dc.contributor |
Jansen, Henri J. |
|
dc.contributor |
Siemens, Philip J. |
|
dc.contributor |
Barnes, Jeffrey |
|
dc.date |
2006-03-21T18:03:30Z |
|
dc.date |
2006-03-21T18:03:30Z |
|
dc.date |
2005-10-11 |
|
dc.date |
2006-03-21T18:03:30Z |
|
dc.date.accessioned |
2013-10-16T07:30:47Z |
|
dc.date.available |
2013-10-16T07:30:47Z |
|
dc.date.issued |
2013-10-16 |
|
dc.identifier |
http://hdl.handle.net/1957/1378 |
|
dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/1378 |
|
dc.description |
Graduation date: 2006 |
|
dc.description |
The extended-Lifshitz-Kosevitch formalism (ELK) unifies the treatment of
the de Haas-van Alphen (dHvA) effect, allowing it to transcend its traditional roles
of mapping Fermi surfaces and measuring effective masses. Here we exploit the
capabilities of dHvA as a probe of many-body effects to examine heavy-fermion su-
perconductivity. ELK successfully describes dHvA in heavy fermion materials using
a slave-boson model in mean field, and in type-II superconducing materials with the
introduction of a self energy due to interactions with the vortex lattice. We propose
a model for combining these two many-body effects, and examine its implications
for dHvA measurements. The result retains the two important characteristics of
its parent models: an enhanced effective mass and temperature-independent damping of the oscillations in the superconducting state. However no suppression of the
heavy mass is predicted in the superconducting state, contrary to experiment. |
|
dc.language |
en_US |
|
dc.subject |
heavy fermion |
|
dc.subject |
superconductor |
|
dc.subject |
dHvA |
|
dc.subject |
de Haas-van Alphen |
|
dc.subject |
correlated electrons |
|
dc.subject |
extended Lifshitz-Kosevitch |
|
dc.subject |
quantum magneto-oscillations |
|
dc.subject |
solid state physics |
|
dc.subject |
Green's functions |
|
dc.title |
Heavy fermion effective mass in the superconducting vortex state |
|
dc.type |
Thesis |
|