Anomalous Nuclear Spin-Lattice Relaxation in the Mixed State of Superconducting Niobium
- 16 June 1969
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 22 (24) , 1300-1303
- https://doi.org/10.1103/physrevlett.22.1300
Abstract
The spin-lattice relaxation time in the mixed state of niobium metal has been observed to depart at high temperatures from the temperature and field dependence predicted by the theory of gapless superconductivity. This anomaly indicates either a breakdown of the gapless theory or, more plausibly, the existence of a new relaxation mechanism at high temperatures.
Keywords
This publication has 15 references indexed in Scilit:
- Theory of the nuclear spin relaxation rate in type-II superconductors near the upper critical fieldPhysics Letters A, 1968
- Theory of the density of states of type - II superconductorsPhysics Letters A, 1968
- Thermodynamic Fluctuations of the Order Parameter in Type-II Superconductors near the Upper Critical FieldPhysical Review B, 1967
- Nuclear Relaxation in Superconducting Niobium Near the Upper Critical FieldPhysical Review Letters, 1967
- Frequency effect in the ultrasonic attenuation in niobium in the mixed statePhysics Letters A, 1967
- Fluctuations of the Order Parameter in Type-II Superconductors. I. Dirty LimitPhysical Review B, 1967
- Fluctuations of the Order Parameter in Type-II Superconductors. II. Pure LimitPhysical Review B, 1967
- Ultrasonic Attenuation in a Pure Type-II Superconductor nearPhysical Review Letters, 1967
- Nuclear spin thermometry below 1 °KProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1965
- Nuclear Spin Relaxation in Normal and Superconducting AluminumPhysical Review B, 1959