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Dresden 2017 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 63: Poster: Quantum Dots and Optics

HL 63.37: Poster

Wednesday, March 22, 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. Brandt11Walter 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)

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