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SUMMARY:Heat Transport in Lateral Spin Valve  - Dr. Georgios Stefanou\, U
 niversity of Cambridge\, UK
DTSTART:20191127T140000Z
DTEND:20191127T150000Z
UID:TALK135406@talks.cam.ac.uk
CONTACT:Dr Kaveh Delfanazari
DESCRIPTION:Lateral spin valves are attractive as potential devices and ut
 ilise charge currents to generate spin currents. The heat generated by the
  charge currents is understood to originate from the Joule and Peltier eff
 ects at the injector but little is known about what happens to this heat a
 s a function of temperature and separation between the injector and detect
 or. Using scanning thermal microscopy we map the spatial distribution of t
 emperatures as heat diffuses through a lateral spin valve. A simple heat d
 iffusion model is verified with the scanning microscopy data and is develo
 ped to understand the thermal properties down to 2K. In this way\, long-st
 anding questions about the thermal voltages measured at the detector and i
 n particular\, the temperature dependence of the baseline resistance are a
 nswered.
LOCATION:Mott Seminar Room (531)\, Cavendish Laboratory\, Department of Ph
 ysics
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