DC Field | Value | Language |
dc.contributor.author | Morgan, Caitlin | |
dc.contributor.author | Misiorny, Maciej | |
dc.contributor.author | Metten, Dominik | |
dc.contributor.author | Heedt, Sebastian | |
dc.contributor.author | Schaepers, Thomas | |
dc.contributor.author | Schneider, Claus M. | |
dc.contributor.author | Meyer, Carola | |
dc.date.accessioned | 2021-12-23T16:23:37Z | - |
dc.date.available | 2021-12-23T16:23:37Z | - |
dc.date.issued | 2016 | |
dc.identifier.issn | 23317019 | |
dc.identifier.uri | https://osnascholar.ub.uni-osnabrueck.de/handle/unios/14605 | - |
dc.description.abstract | We investigate magnetoresistance in spin valves involving CoPd-contacted carbon nanotubes. Both the temperature and bias-voltage dependence clearly indicate tunneling magnetoresistance as the origin. We show that this effect is significantly affected by the tunnel-barrier strength, which appears to be one reason for the variation between devices previously detected in similar structures. Modeling the data by means of the scattering matrix approach, we find a nontrivial dependence of the magnetoresistance on the barrier strength. Furthermore, an analysis of the spin precession observed in a nonlocal Hanle measurement yields a spin lifetime of tau(s) = 1.1 ns, a value comparable with those found in silicon- or graphene-based spin-valve devices. | |
dc.description.sponsorship | Alexander von Humboldt FoundationAlexander von Humboldt Foundation; Polish Ministry of Science and Higher Education through a young scientist fellowship [0066/E-336/9/2014]; DFG Research unit FOR912German Research Foundation (DFG); The authors thank S. Trellenkamp for e-beam writing, T. Jansen for metallization, and N. Schnitzler, H. Kertz, and H. Pfeifer for technical assistance with the cryostat setups. We thank D. Burgler, G. Schmidt, and P. Mavropoulos for fruitful discussions. The WSxM software is used to analyze all AFM data [84]. M. M. acknowledges financial support from the Alexander von Humboldt Foundation and the Polish Ministry of Science and Higher Education through a young scientist fellowship (0066/E-336/9/2014). C. Meyer acknowledges financial support from the DFG Research unit FOR912. | |
dc.language.iso | en | |
dc.publisher | AMER PHYSICAL SOC | |
dc.relation.ispartof | PHYSICAL REVIEW APPLIED | |
dc.subject | BEHAVIOR | |
dc.subject | DEPENDENT TRANSPORT | |
dc.subject | DEVICES | |
dc.subject | ELECTRONS | |
dc.subject | GRAPHENE | |
dc.subject | MODELS | |
dc.subject | Physics | |
dc.subject | Physics, Applied | |
dc.subject | ROOM-TEMPERATURE | |
dc.subject | SILICON | |
dc.subject | SINGLE | |
dc.subject | SPIN POLARIZATION | |
dc.title | Impact of Tunnel-Barrier Strength on Magnetoresistance in Carbon Nanotubes | |
dc.type | journal article | |
dc.identifier.doi | 10.1103/PhysRevApplied.5.054010 | |
dc.identifier.isi | ISI:000376274800001 | |
dc.description.volume | 5 | |
dc.description.issue | 5 | |
dc.contributor.orcid | 0000-0002-9279-5618 | |
dc.contributor.orcid | 0000-0003-0851-2767 | |
dc.contributor.orcid | 0000-0002-3920-6255 | |
dc.contributor.orcid | 0000-0001-7861-5003 | |
dc.contributor.orcid | 0000-0001-7861-5003 | |
dc.contributor.orcid | 0000-0003-0050-6688 | |
dc.contributor.researcherid | L-9076-2016 | |
dc.contributor.researcherid | I-1723-2012 | |
dc.contributor.researcherid | H-7453-2012 | |
dc.contributor.researcherid | I-5256-2013 | |
dc.contributor.researcherid | AAF-3356-2020 | |
dc.contributor.researcherid | M-7958-2013 | |
dc.publisher.place | ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA | |
dcterms.isPartOf.abbreviation | Phys. Rev. Appl. | |
dcterms.oaStatus | Green Submitted, Green Published | |
crisitem.author.dept | FB 04 - Physik | - |
crisitem.author.deptid | fb04 | - |
crisitem.author.orcid | 0000-0003-0851-2767 | - |
crisitem.author.parentorg | Universität Osnabrück | - |
crisitem.author.netid | MeCa197 | - |