Anomalous nuclear spin co
Anomalous nuclear spin coherence in superconducting Nb$_3$Sn
Anomalous nuclear spin coherence in superconducting Nb$_3$Sn
We have investigated the normal and superconducting states of the technologically important compound Nb$_3$Sn using $^{93}$Nb nuclear magnetic resonance. From spin-lattice relaxation we find strong suppression of the zero-temperature superconducting order parameter by magnetic field. We have identif…
