Coupled s-Wave and d-Wave States in the Heavy Fermion Superconductor U sub 1-x Th sub x Be sub 13
Abstract
In the heavy fermion superconductor U(1-x)Th(x)Be13, superconducting states coexist for thorium concentrations O < or = 0.06. Assuming s-wave and d- wave symmetries for these states, a Ginzburg-Landau free energy expression is derived which couples s- and d-wave states and is rotationally invariant, in contrast to the free energy expression proposed by Kumar and Wolfle (Phys. Rev. Lett. 59, 1954 (1987)). Discussed in detail are the consequences that follow from our free energy relation. In particular, one predicts that in the above system there are two eigenfrequencies associated with the dynamics of phase oscillations (internal Josephson effect) which are characteristic of the s-wave and d-wave states. Keywords: Coupled states; Heavy fermion system; Superconductor; Ginzburg Landau free energy.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1988
- Accession Number
- ADA197124
Entities
People
- A. Langner
- D. Sahu
- Thomas F. George
Organizations
- University at Buffalo