ESR in situ with a Josephson tunnel junction
Abstract
The electron spin resonance in a NbAuPb Josephson junction is reported. The gold layer was alloyed with 100 to 1000 ppm Gd and 167Er, respectively. Resonances are observed in the I-V cureves at frequencies equivalent to the crystal-field splitting of AuGd (1.0 and 1.7 GHz) and to the hyperfine splitting of Au 167Er (2.87 GHz). The basic idea of this type of ESR-Josephson spectroscopy and the application are discussed. The magnetic field dependence of Ic is described and compared with a simulation.
- Publication:
-
Journal of Magnetism and Magnetic Materials
- Pub Date:
- February 1986
- DOI:
- 10.1016/0304-8853(86)90876-0
- Bibcode:
- 1986JMMM...54.1415B