Journal
APPLIED PHYSICS LETTERS
Volume 103, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4824703
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Funding
- National Fundamental Research Program [2011CBA00200]
- NNSF [11222438, 10934006, 11274294, 11074243, 11174267, 91121014]
- CAS
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We perform photon-assisted-tunneling (PAT) experiments on a GaAs double quantum dot device under high microwave excitation power. Photon-assisted absorption of up to 14 photons is observed, when electron temperature (>1 K) is far above the lattice temperature. Signatures of Landau-Zener-Stuckelberg interference are found even in this non-equilibrium PAT spectrum. In addition, the charge state relaxation time T-1 similar to 8ns measured in this out of thermal equilibrium double quantum dot is in agreement with other previous reports. (C) 2013 AIP Publishing LLC.
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