Topological insulators

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topological <strong>insulators</strong> another look at the quantum Hall edge states quantum Hall edge states come in spin pairs: time reversal symmetry is broken skipping orbits bulk orbits (Landau levels)
topological <strong>insulators</strong> edge states with time reversal preserved: spin-orbit coupling spin-orbit edge states come in spin pairs, but move opposite: time reversal symmetry is preserved edge states no backscattering !!! the edge states are topologically protected against TR scattering
Page 1 and 2: http://www.physik.uni-regensburg.de
Page 3 and 4: :outline: • mesoscopics for pedes
Page 5 and 6: How much current per spin flows in
Page 7 and 8: conductance quantization B. J. van
Page 9 and 10: integer quantum Hall effect: topolo
Page 11: topological nature of the integer q
Page 15 and 16: Time reversal points spin degenerac
Page 17 and 18: (non-exotic) materials classes of t
Page 19 and 20: HgTe/CdTe quantum wells CdTe CdTe C
Page 21 and 22: experimental evidence of TI states
Page 23 and 24: magnetism of the TI edge states in
Page 29: Conclusion topological insulators a

Topological insulators

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