KAPITZA RESISTANCE MEASUREMENT USING GLASS CAPACITORS

Glass capacitors provide an inexpensive but precise method for measuri ng Kapitza resistance. A small piece of glass is coated with metal on two sides to form a capacitor which is then immersed in liquid helium. Once calibrated, the capacitor serves as a sensitive thermometer whic h can be heated ohmically and used to measure the Kapitza resistance b etween the helium and the metal or any coating placed over the metal. We discuss techniques for both preparing samples and measuring Kapitza resistance, including suggestions for future development.