2013/12/31 by J. Stehlik, M. D. Schroer, M. Z. Maialle +2 · 1 citation
Physics and Astronomy · #cond-mat.mes-hall #quant-ph
paper · pdf · doi:10.1103/physrevlett.112.227601
published as Phys. Rev. Lett. 112, 227601 (2014) · Related papers at http://pettagroup.princeton.edu
arxiv created 2014/07/03 · arxiv updated 2014/07/04
We report the observation of multiple harmonic generation in electric dipole spin resonance in an InAs nanowire double quantum dot. The harmonics display a remarkable detuning dependence: near the interdot charge transition as many as eight harmonics are observed, while at large detunings we only observe the fundamental spin resonance condition. The detuning dependence indicates that the observed harmonics may be due to Landau-Zener transition dynamics at anticrossings in the energy level spectrum.