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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-1865
DTSTART:20100527T150000Z
DURATION:PT1H0M0S
DTSTAMP:20260422T111325Z
LAST-MODIFIED:20100524T125147Z
LOCATION:5310 Chamberlin
SUMMARY:Transport experiments on carbon nanotube double quantum dots\,
  R. G. Herb Condensed Matter Seminar\, Simon Chorley\, Cambridge Unive
 rsity
DESCRIPTION:In this talk I will present the results of a number of ele
 ctrical transport experiments performed at low temperature on carbon n
 anotube double dots.<br>
\n<br>
\nI will discuss in detail the behavio
 ur of a double dot which exhibits Pauli spin blockade\, and its intera
 ction with the environment. In our experiments we measure and demonstr
 ate control of the single-triplet exchange coupling between the dots a
 nd investigate the effect of spin-orbit interaction. We find that the 
 double dot is exchange-coupled to a single impurity spin and show how 
 this affects transport.<br>
\n<br>
\nOn the same device\, under differ
 ent coupling conditions\, the Kondo effect is present and we probe the
  competition between Kondo and exchange interactions. I will then move
  on to initial experiments of state sensing performed using radio-freq
 uency reflectometry with a resonator directly coupled to the nanotube.
  Finally I will show results of quantised charge pumping using a nanot
 ube double dot.
URL:https://www.physics.wisc.edu/events/?id=1865
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