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arXiv · 1610.08402

Time-resolved measurements of surface spin-wave pulses at millikelvin temperatures

A. F. van Loo·R. G. E. Morris·A. D. Karenowska
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Abstract

In this work, we experimentally investigate the propagation of pulsed magnetostatic surface spin-wave (magnon) signals in an yttrium iron garnet (YIG) waveguide at millikelvin temperatures. Our measurements are performed in a dilution refrigerator at microwave frequencies. The excellent signal-to-noise ratio afforded by the low-temperature environment allows the propagation of the pulses to be observed in detail. The work gives insight both into low-temperature magnon dynamics in YIG and the potential application of systems of propagating magnons to solid-state quantum information processing.

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A. F. van Loo, R. G. E. Morris, A. D. Karenowska. 2016-10-26. Time-resolved measurements of surface spin-wave pulses at millikelvin temperatures. https://doi.org/10.1103/physrevapplied.10.044070

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