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Fang, D.; Skinner, T.; Kurebayashi, H.; Campion, R. P.; Gallagher, B. L.; Ferguson, A. J. (2012)
Languages: English
Types: Preprint
Subjects: Condensed Matter - Mesoscale and Nanoscale Physics
Identifiers:doi:10.1063/1.4764519
Motivated by the prospects of increased measurement bandwidth, improved signal to noise ratio and access to the full complex magnetic susceptibility we develop a technique to extract microwave voltages from our high resistance (10 k{\Omega}) (Ga,Mn)As microbars. We drive magnetization precession with microwave frequency current, using a mechanism that relies on the spin orbit interaction. A capacitively coupled lambda/2 microstrip resonator is employed as an impedance matching network, enabling us to measure the microwave voltage generated during magnetisation precession.

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