Coexistence of CDW with staggered superconductivity in a ferromagnetic material
arXiv:0709.1025 · doi:10.1209/0295-5075/82/67007
Abstract
In usual superconductivity (SC), the pairs have zero total momentum irrespective of their symmetry. Staggered SC would involve, instead, pairs with a finite commensurate total momentum, but such exotic states have never been proven to be realized in nature. Here we study for the first time the influence of particle-hole asymmetry on the competition of staggered SC with Charge Density Waves (CDW) in a ferromagnetic medium. We obtain unprecedented situations in which CDW and staggered SC coexist. We also obtain cases of a SC dome near the collapse of a CDW state as well as cascades of transitions that exhibit remarkable similarities with the pressure phase diagram in UGe suggesting that SC in this material may be staggered coexisting and competing with a CDW state.
arXiv commentadded references, epl version
References in corpus (14)
- Hidden Order in the Cuprates
- Pressure dependence of the magnetization in the ferromagnetic superconductor UGe_2
- Magnetism, Spin-Orbit Coupling, and Superconducting Pairing in UGe
- Theory of Ferromagnetic Superconductivity
- Ferromagnetic superconductivity driven by changing Fermi surface topology
- Superconducting states in ferromagnetic metals
- A Model for Superconductivity in Ferromagnetic ZrZn2
- Coupled CDW and SDW Fluctuations as an Origin of Anomalous Properties of Ferromagnetic Superconductor UGe_2
- Heat-capacity anomalies at and in the ferromagnetic superconductor UGe
- Single Spin Superconductivity: Formulation and Ginzburg-Landau Theory
- Staggered Superconductivity in UPt: A New Phenomenological Approach
- Cooperative Phenomenon of Ferromagnetism and Unconventional Superconductivity in UGe: A ^73^Ge-NQR Study under Pressure
- Signatures of pairing mechanisms and order parameters in ferromagnetic superconductors
- Staggered Pairing Phenomenology for UPd_2Al_3 and UNi_2Al_3