Alternating-Current Loss Measurements in Thin-Film Type II Superconductors
- 1 January 1971
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 42 (1) , 21-26
- https://doi.org/10.1063/1.1659568
Abstract
An electrical technique is described for measuring the audio frequency power dissipation in superconducting thin films as a function of the ac current density, frequency, and applied dc magnetic field. This system has been used to study the ac losses in thin films of Nb and NbN, and also the ac and dc critical current densities in these materials. The results can be explained by assuming that both hysteresis and eddy current losses contribute.This publication has 3 references indexed in Scilit:
- Very High Critical Current and Field Characteristics of Niobium Nitride Thin FilmsJournal of Applied Physics, 1971
- Preparation and Superconducting Properties of Thin Films of Transition Metal Interstitial CompoundsJournal of Vacuum Science and Technology, 1969
- The nature of the surface losses of superconductors at low frequenciesCryogenics, 1963