Collective nature of flux creep according to microwave absorption in YBa2Cu3O, single crystals
Talanov Yu. I., Teitel'baum G. B., Khasanov R. I.
A study of microwave absorption in a magnetic field has revealed the behavior of the creep activation barrier as a function of the amplitude of the microwave current. The behavior found is evidence that the lattice of vortex lines is in a vortex glass state at low temperatures.