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UID:UW-Physics-Event-1863
DTSTART:20100617T150000Z
DURATION:PT1H0M0S
DTSTAMP:20260311T064110Z
LAST-MODIFIED:20100609T155419Z
LOCATION:5310 Chamberlin
SUMMARY:Study of proximity-induced triplet correlations in ferromagnet
 ic Josephson junctions\, R. G. Herb Condensed Matter Seminar\, Trupti 
 Khaire\, Michigan State University
DESCRIPTION:When a Superconductor (S) is placed next to a ferromagnet 
 (F)\, the electrons from the spin-singlet Cooper pairs enter different
  spin bands and rapidly lose phase coherence over a short length scale
 . However\, it is predicted that in the presence of magnetic inhomogen
 eities not only spin-singlet but also long range spin-triplet correlat
 ions are generated. The symmetry of these long range spin-triplet corr
 elations is different from the spin-triplet correlations found in stro
 ntium ruthenate Sr<sub>2</sub>RuO<sub>4</sub> and in heavy fermion int
 ermetallic compounds. The novelty of spin-triplet correlations studied
  here lies in the fact that they are odd under time reversal. I will t
 alk about our search of proximity-induced triplet correlations in ferr
 omagnetic Josephson junctions. In particular I will focus on our recen
 t experiment on Co-based Josephson junctions [1] that have shown stron
 g evidence of these triplet correlations and will explain the experime
 ntal considerations that went into designing the peculiar multilayer u
 sed in this work.<br>
\n<br>
\n[1] T.S. Khaire\, M.A. Khasawneh\, W.P.
  Pratt\, Jr.\, and N.O. Birge\, Phys. Rev. Lett. 104\, 137002 (2010).
URL:https://www.physics.wisc.edu/events/?id=1863
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