dc.contributor.author | Linder, Jacob | |
dc.contributor.author | Cuoco, Mario | |
dc.contributor.author | Sudbø, Asle | |
dc.date.accessioned | 2017-09-18T07:52:05Z | |
dc.date.available | 2017-09-18T07:52:05Z | |
dc.date.created | 2010-05-25T18:30:06Z | |
dc.date.issued | 2010 | |
dc.identifier.citation | Physical Review B. Condensed Matter and Materials Physics. 2010, 81 (17), . | nb_NO |
dc.identifier.issn | 1098-0121 | |
dc.identifier.uri | http://hdl.handle.net/11250/2455023 | |
dc.description.abstract | We study the physical properties of a half-metallic ferromagnet∣superconductor (HM∣S) bilayer, allowing for an arbitrary bulk pairing symmetry of the superconductor and spin-dependent processes at the interface. In particular, we study how the possibility of unconventional pairing such as p- and d-wave and a spin-active interface influence the (i) conductance spectra, (ii) proximity effect, and (iii) local density of states of such a bilayer. Our calculation is done both analytically and numerically in the ballistic limit, using both a continuum and lattice model. It is found that the spin-dependent phase shifts occurring at the HM∣S interface seriously influence all of the aforementioned phenomena. We explain our results in terms of Andreev reflection in the presence of a spin-active interface, allowing for both spin-filtering and spin-mixing processes. We demonstrate how the surface bound states induced by the anisotropy of the superconducting order parameter at the HM∣S interface are highly sensitive to these spin-dependent processes. Our results can be directly tested experimentally using scanning tunnel microscope measurements and/or point-contact spectroscopy. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | American Physical Society | nb_NO |
dc.subject | Ukonvensjonell superledning | nb_NO |
dc.subject | Unconventional superconductivity | nb_NO |
dc.title | Spin-active interfaces and unconventional pairing in half-metal/superconductor junctions | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.subject.nsi | VDP::Kondenserte fasers fysikk: 436 | nb_NO |
dc.subject.nsi | VDP::Condensed matter physics: 436 | nb_NO |
dc.source.pagenumber | 12 | nb_NO |
dc.source.volume | 81 | nb_NO |
dc.source.journal | Physical Review B. Condensed Matter and Materials Physics | nb_NO |
dc.source.issue | 17 | nb_NO |
dc.identifier.doi | 10.1103/PhysRevB.81.174526 | |
dc.identifier.cristin | 348720 | |
dc.description.localcode | This is the authors' accepted and refereed manuscript to the article. | nb_NO |
cristin.unitcode | 194,66,20,0 | |
cristin.unitname | Institutt for fysikk | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 2 | |