Abstract
We consider a superconducting state with mixed-symmetry order parameter components, e.g., or with . We argue for the existence of a new orbital magnetization mode which corresponds to oscillations of relative phase between two components around an equilibrium value of . It is similar to the “clapping” mode in superfluid . We estimate the frequency of this mode depending on the field and temperature for the specific case of magnetic field induced state. This mode is tunable with a magnetic field with , where is the magnitude of the -wave order parameter. We also estimate the velocity of this mode.
- Received 15 October 1999
DOI:https://doi.org/10.1103/PhysRevLett.84.4445
©2000 American Physical Society