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CATEGORIES:Cambridge and Anglian Materials Society meetings
SUMMARY:Superconducting Spintronics: a tantalizing possibi
 lity for dissipation-free logic - Dr Jason Robinso
 n\, Royal Society University Research Fellow\, Dep
 artment of Materials Science and Metallurgy\, Univ
 ersity of Cambridge
DTSTART;TZID=Europe/London:20121114T193000
DTEND;TZID=Europe/London:20121114T210000
UID:TALK41358AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/41358
DESCRIPTION:The promise of spin-electronics (spintronics) is t
 hat logic processing based on the spin of an elect
 ron can be faster and lower power than the convent
 ional charge-based equivalent in semiconductor tra
 nsistor technologies.  However\, generating and pr
 opagating the necessary spin currents is not low p
 ower because large charge currents are required at
  device inputs\, which dissipate heat\, limiting c
 ircuit efficiency.  The real breakthrough would be
  the creation of spin-polarised supercurrents in w
 hich there is no dissipation.  In 2001\, theory pr
 edicted that at a carefully engineered superconduc
 tor / ferromagnet interface it would be possible t
 o create a source of spin-polarised supercurrents.
   In 2010\, our group discovered how to generate s
 uch dissipation-free spin-currents and now we are 
 investigating the fundamental properties of this n
 ew superconducting state and its potential in prac
 tical devices. In this talk\, I will provide an ov
 erview of this work on spin-polarised superconduct
 ivity.
LOCATION:Department of Materials Science and Metallurgy\, N
 ew Museums Site\, Pembroke Street\, Cambridge CB2 
 3QZ
CONTACT:Dr Geoff Hale
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