Orbital Dependent Superconductivity in
DF Agterberg, TM Rice, M Sigrist - Physical review letters, 1997 - APS
DF Agterberg, TM Rice, M Sigrist
Physical review letters, 1997•APSWe show that for superconducting Sr 2 RuO 4 any unconventional pairing in the part of the
Fermi surface with Ru 4 d xy orbital character is weakly coupled to that with Ru {4 d xz, 4 d
yz} orbital character. This naturally gives rise to two disparate energy scales in the
superconducting state which leads to novel low temperature properties in a variety of
thermodynamic and transport properties and which would also account for the large residual
density of states seen in specific heat and nuclear quadrapole resonance measurements.
Fermi surface with Ru 4 d xy orbital character is weakly coupled to that with Ru {4 d xz, 4 d
yz} orbital character. This naturally gives rise to two disparate energy scales in the
superconducting state which leads to novel low temperature properties in a variety of
thermodynamic and transport properties and which would also account for the large residual
density of states seen in specific heat and nuclear quadrapole resonance measurements.
Abstract
We show that for superconducting Sr 2 RuO 4 any unconventional pairing in the part of the Fermi surface with Ru 4 d xy orbital character is weakly coupled to that with Ru {4 d xz, 4 d yz} orbital character. This naturally gives rise to two disparate energy scales in the superconducting state which leads to novel low temperature properties in a variety of thermodynamic and transport properties and which would also account for the large residual density of states seen in specific heat and nuclear quadrapole resonance measurements.
American Physical Society