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SUMMARY:Scanning tunneling microscopy at mK temperatures: Probing the smal
 lest energy scales
DTSTART:20141107T141500
DTSTAMP:20260510T135056Z
UID:8c6dc9268b90ca6a6d7fc194626fe271534cb7a02100581691f13c9e
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Christian R. Ast\, Max Planck Institute\, Stuttgart\nAs th
 e energy resolution in a scanning tunneling microscope (STM) is principall
 y connected to the temperature of the system\, the smallest energy scales 
 in solid state physics\, such as Zeeman splitting or elemental superconduc
 tivity\, are only observable at lowest temperatures. With our new STM oper
 ating at 15mK\, we have access to these small energy scales with an energy
  resolution of 11.4±0.3µeV. Using examples of recent results\, we demons
 trate the capabilities of the system\, such as resolving the Zeeman-splitt
 ing in a nanoscale superconductor or detecting the ac-Josephson e ect in t
 he tunneling current. Implications of these results for further research\,
  such as probing the absolute spin-polarization or creating an atomic scal
 e photon source\, will be discussed.
LOCATION:PH L1 503 (Aquarium) http://plan.epfl.ch/?room=PHL1503
STATUS:CANCELLED
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