Dresden 2017 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 63: Poster: Quantum Dots and Optics
HL 63.37: Poster
Mittwoch, 22. März 2017, 15:00–19:00, P1A
Broadband Electrically Detected Magnetic Resonance using Optimal Control — •Lukas Stelzer1, Florian M. Hrubesch1, Wolfgang Kallies2, Steffen J. Glaser2, and Martin S. Brandt1 — 1Walter Schottky Institut and Physik-Department, Technische Universität München — 2Chemie-Department, Technische Universität München
We present a broad-band spin resonance setup with the ability to apply shaped pulses for electrically detected magnetic resonance (EDMR). The setup uses non-resonant stripline structures for on-chip radiofrequency and microwave delivery and was tested to work in the frequency range from 4 MHz to 18 GHz. In combination with a broadband microwave amplifier with a saturated power of 10 W the stripline structures allow for B1 fields of 0.3 mT and higher. We first demonstrate the functionality of this EDMR spectrometer using adiabatic BIR4 pulses for arbitrary rotations of both electron spins as well as nuclear spins in ENDOR experiments using adiabatic pulses only [1]. We then extend this approach to optimal control pulses and systematically explore the applicability of optimal control point-to-point, universal rotation and cooperative pulses to the various types of EDMR experiments.
[1] F. M. Hrubesch, G. Braunbeck, A. Voss, M. Stutzmann and M. S. Brandt, JMR 254, 62 (2015)