Vacuum Measurements of a Novel Micro-resonator Based on Tin Whiskers Performed at mK Temperatures

We present a method of preparation and preliminary vacuum measurements conducted at ∼20 mK of a new type of micro-resonator based on Sn-whiskers. Sn-whiskers have ∼1 μm radius and their length can be ∼1–2 mm. As added benefit, the Sn-whiskers are mono-crystalline metal fibers with relatively smooth surface and being superconducting at low temperatures one may expect their high Q-factors.