Junctions of Spin-Incoherent Luttinger Liquids with Ferromagnets and Superconductors
| dc.creator | Tilahun, Dagim | |
| dc.creator | Fiete, Gregory A. | |
| dc.date | 2008-10-10 | |
| dc.date.accessioned | 2026-07-07T12:53:26Z | |
| dc.date.available | 2026-07-07T12:53:26Z | |
| dc.description | We discuss the properties of a strongly interacting spin-charge separated one dimensional system coupled to ferromagnets and/or superconductors. Our results are valid for arbitrary temperatures with respect to the spin energy, but require temperature be small compared to the charge energy. We focus mainly on the spin-incoherent regime where temperature is large compared to the spin energy, but small compared to the charge energy. In the case of a ferromagnet we study spin pumping and the renormalized dynamics of a precessing magnetic order parameter. We find the interaction-dependent temperature dependence of the spin pumping can be qualitatively different in the spin-incoherent regime from the Luttinger liquid regime, allowing an identification of the former. Likewise, the temperature dependence of the renormlized magnetization dynamics can be used to identify spin-incoherent physics. For the case of a spin-incoherent Luttinger liquid coupled to two superconductors, we compute the ac and dc Josephson current for a wire geometry in the limit of tunnel coupled superconductors. Both the ac and dc response contain "smoking gun" signatures that can be used to identify spin-incoherent behavior. Experimental requirements for the observation of these effects are laid out. | |
| dc.description | 19 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0810.1788 | |
| dc.identifier | http://arxiv.org/abs/0810.1788 | |
| dc.identifier | Phys. Rev. B 79, 115425 (2009) | |
| dc.identifier | doi:10.1103/PhysRevB.79.115425 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/223619 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Junctions of Spin-Incoherent Luttinger Liquids with Ferromagnets and Superconductors | |
| dc.type | text |