A Gold cavity resonator resonating at 10 GHz is fully coated using $$2 \mu m$$ YBCO (Yttrium Barium Copper Oxide) material and operating at boiling temperature of liquid nitrogen.
What is the Skin Depth of RF at this frequency?
Assume $$\sigma_{A \mu} = 4e 7$$ Siemens/meter at cavity operating temperature.
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