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Precision Multi-Mode Dielectric Characterization of a Crystalline Perovskite Enables Determination of the Temperature-Dependent Phase Transitions
Zijun C. Zhao, Maxim Goryachev, Jerzy Krupka +1
Simple perovskite crystals undergo structural phase transitions on cooling to low temperatures, which significantly change the material properties of the crystal. In this work we r…
Observation of Low Temperature Magneto-Mechanic Effects in Crystalline Resonant Phonon Cavities
Maxim Goryachev, Serge Galliou, Michael E. Tobar
We observe magnetic effects in ultra-high quality factor crystalline quartz Bulk Acoustic Wave resonators at milli-Kelvin temperature. The study reveals existence of hysteresis loo…
Low temperature properties of whispering gallery modes in isotopically pure silicon 28
Jeremy Bourhill, Daniel L. Creedon, Maxim Goryachev +3
Whispering Gallery (WG) mode resonators have been machined from a boule of single-crystal isotopically pure silicon-28. Before machining, the as-grown rod was measured in a cavity,…
Strong Coupling of 3D Cavity Photons to Travelling Magnons At Low Temperatures
Maxim Goryachev, Mikhail Kostylev, Michael E. Tobar
We demonstrate strong coupling between travelling magnons in an Yttrium Iron Garnet film and 3D microwave cavity photons at milli-Kelvin temperatures. The coupling strength of $350…
Electromagnetic properties of terbium gallium garnet at millikelvin temperatures and single photon energy
Nikita Kostylev, Maxim Goryachev, Pavel Bushev +1
Electromagnetic properties of single crystal terbium gallium garnet (TGG) are characterised from room down to millikelvin temperatures using the whispering gallery mode method. Mic…
Determination of the Anisotropy of Permittivity of Quantum Paraelectric Strontium Titanate
Maxim Goryachev, Lingfei Zhao, Zijun Zhao +3
The dielectric properties of strontium titanate (SrTiO) have previously been reported from room temperature to low temperatures with conflicting results. In this work, precisio…