Critical magnetic fields in the superconducting state of K3C60
Abstract
We have measured the temperature dependence of the lower and upper critical fields in superconducting K3C60. From the measurements, we have evaluated the penetration depth (λ=2400 Å) and superconducting coherence length (ξ=26 Å). The parameters are in agreement with a superconducting state formed by a narrow band.
- Publication:
-
Physical Review Letters
- Pub Date:
- July 1991
- DOI:
- 10.1103/PhysRevLett.67.271
- Bibcode:
- 1991PhRvL..67..271H
- Keywords:
-
- Energy Bands;
- Magnetic Effects;
- Magnetic Fields;
- Superconductivity;
- Atomic Energy Levels;
- Energy Gaps (Solid State);
- Magnetization;
- Temperature Dependence;
- Solid-State Physics;
- 74.40.+k;
- 74.30.Ci;
- Fluctuations