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High-Q magnetic levitation and control of superconducting microspheres at millikelvin temperatures
Joachim Hofer, Rudolf Gross, Gerard Higgins +11
We report the levitation of a superconducting lead-tin sphere with 100 micrometer diameter (corresponding to a mass of 5.6 micrograms) in a static magnetic trap formed by two coils…
Hybrid magnetization dynamics in / heterostructures
Carolina Lüthi, Luis Flacke, Aisha Aqeel +4
We investigate the coupled magnetization dynamics in heterostructures of a single crystal of the chiral magnet (CSO) and a polycrystalline ferromagnet $\mathr…
Observation of nonreciprocal magnon Hanle effect
Janine Gückelhorn, Sebastián de-la-Peña, Matthias Grammer +8
The precession of magnon pseudospin about the equilibrium pseudofield, the latter capturing the nature of magnonic eigen-excitations in an antiferromagnet, gives rise to the magnon…
Low-temperature nanoscale heat transport in a gadolinium iron garnet heterostructure probed by ultrafast x-ray diffraction
Deepankar Sri Gyan, Danny Mannix, Dina Carbone +11
Time-resolved x-ray diffraction has been used to measure the low-temperature thermal transport properties of a Pt/Gd3Fe5O12//Gd3Ga5O12 metal/oxide heterostructure relevant to appli…
Reduced effective magnetization and damping by slowly-relaxing impurities in strained - thin films
Manuel Müller, Monika Scheufele, Janine Gückelhorn +6
We study the static and dynamic magnetic properties of epitaxially strained - (maghemite) thin films grown via pulsed-laser deposition on MgO substrates by SQU…
Perspectives of microwave quantum key distribution in open-air
Florian Fesquet, Fabian Kronowetter, Michael Renger +8
One of the cornerstones of quantum communication is the unconditionally secure distribution of classical keys between remote parties. This key feature of quantum technology is base…