The Two Dimensional Kondo Model with Rashba Spin-Orbit Coupling |
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Authors: | Justin Malecki |
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Institution: | (1) Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada |
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Abstract: | We investigate the effect that Rashba spin-orbit coupling has on the low energy behaviour of a two dimensional magnetic impurity
system. It is shown that the Kondo effect, the screening of the magnetic impurity at temperatures T<T
K
, is robust against such spin-orbit coupling, despite the fact that the spin of the conduction electrons is no longer a conserved
quantity. A proposal is made for how the spin-orbit coupling may change the value of the Kondo temperature T
K
in such systems and the prospects of measuring this change are discussed. We conclude that many of the assumptions made in
our analysis invalidate our results as applied to recent experiments in semi-conductor quantum dots but may apply to measurements
made with magnetic atoms placed on metallic surfaces. |
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Keywords: | Kondo effect Rashba spin-orbit coupling Magnetic impurities Strongly-correlated electrons |
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