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Excitation of a Si/SiGe quantum dot using an on-chip microwave antenna

Research output: Contribution to journalJournal articlepeer-review

  • E. Kawakami
  • P. Scarlino
  • L. R. Schreiber
  • Jonathan Prance
  • D. E. Savage
  • M. G. Lagally
  • M. A. Eriksson
  • L. M. K. Vandersypen
Article number132410
<mark>Journal publication date</mark>2013
<mark>Journal</mark>Applied Physics Letters
Number of pages5
Publication StatusPublished
Early online date26/09/13
<mark>Original language</mark>English


We report transport measurements on a Si/SiGe quantum dot subject to microwave excitation via an on-chip antenna. The response shows signatures of photon-assisted tunneling and only a small effect on charge stability. We also explore the use of a d.c. current applied to the antenna for generating tunable, local magnetic field gradients and put bounds on the achievable field gradients, limited by heating of the reservoirs.