Tunneling into a Heavy Fermion System

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dc.contributor.authorSpånslätt, Christian
dc.contributor.departmentChalmers tekniska högskola / Institutionen för mikroteknologi och nanovetenskapsv
dc.contributor.departmentChalmers University of Technology / Department of Microtechnology and Nanoscienceen
dc.date.accessioned2019-07-03T12:54:23Z
dc.date.available2019-07-03T12:54:23Z
dc.date.issued2012
dc.description.abstractThe discovery of an extremely high effective electron mass in CeAl3 by Andres et al in 1975 was the starting point for Heavy Fermion physics. One possible theory for explaining this heavy fermion behaviour is the Kondo lattice model which is investigated in this master thesis. With a slave boson mean field approach using Green’s functions, a set of mean field equations are derived and solved. The solutions of these equations determine the model behaviour as a function of various input parameters. In addition, a system where the Kondo lattice model is in close proximity to a Scanning Tunneling Microscope is considered. By the use of non-equilibrium Keldysh formalism, a tunneling current and differential conductance is calculated. The differential conductance is seen to map out the Kondo lattice density of states.
dc.identifier.urihttps://hdl.handle.net/20.500.12380/161329
dc.language.isoeng
dc.setspec.uppsokPhysicsChemistryMaths
dc.subjectMagnetism
dc.subjectGrundläggande vetenskaper
dc.subjectSupraledning
dc.subjectMaterialvetenskap
dc.subjectNanovetenskap och nanoteknik
dc.subjectMagnetism
dc.subjectBasic Sciences
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.subjectNanoscience & Nanotechnology
dc.titleTunneling into a Heavy Fermion System
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster Thesisen
dc.type.uppsokH
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