dc.contributor.author | Linder, Jacob | |
dc.contributor.author | Halterman, Klaus | |
dc.date.accessioned | 2017-11-09T09:38:57Z | |
dc.date.available | 2017-11-09T09:38:57Z | |
dc.date.created | 2014-12-06T13:08:33Z | |
dc.date.issued | 2014 | |
dc.identifier.issn | 1098-0121 | |
dc.identifier.uri | http://hdl.handle.net/11250/2465139 | |
dc.description.abstract | The recent experimental demonstration of spin-polarized supercurrents offers a venue for establishment of a superconducting analog to conventional spintronics. Whereas domain-wall motion in purely magnetic structures is a well-studied topic, it is not clear how domain-wall dynamics may influence superconductivity and whether some functional property can be harnessed from such a scenario. Here, we demonstrate that domain walls in superconducting systems offer a unique way of controlling the quantum state of the superconductor. Considering both the diffusive and ballistic limits, we show that moving the domain wall to different locations in a Josephson junction will change the quantum ground state from being in a 0 state to a π state. Remarkably, we also show that domain-wall motion can be used to turn on and off superconductivity: the position of the domain wall determines the critical temperature Tc and thus whether the system is in a resistive state or not, causing even a quantum phase transition between the dissipationless and normal state at T=0. In this way, one achieves dynamical control over the superconducting state within a single sample by utilizing magnetic domain wall motion which has interesting consequences in terms of a domain-wall-controlled superconducting magnetoresistance effect. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | American Physical Society | nb_NO |
dc.title | Superconducting spintronics with magnetic domain walls | nb_NO |
dc.type | Journal article | nb_NO |
dc.description.version | submittedVersion | nb_NO |
dc.source.volume | 90:104502 | nb_NO |
dc.source.journal | Physical Review B. Condensed Matter and Materials Physics | nb_NO |
dc.source.issue | 10 | nb_NO |
dc.identifier.doi | 10.1103/PhysRevB.90.104502 | |
dc.identifier.cristin | 1181644 | |
dc.description.localcode | © 2014 American Physical Society. This is the authors' manuscript to the article (preprint). | nb_NO |
cristin.unitcode | 194,66,20,0 | |
cristin.unitname | Institutt for fysikk | |
cristin.ispublished | true | |
cristin.fulltext | preprint | |
cristin.qualitycode | 2 | |