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@ARTICLE{Morgan:811683,
      author       = {Morgan, Caitlin and Misiorny, Maciej and Metten, Dominik
                      and Heedt, Sebastian and Schäpers, Thomas and Schneider,
                      Claus M. and Meyer, Carola},
      title        = {{I}mpact of {T}unnel-{B}arrier {S}trength on
                      {M}agnetoresistance in {C}arbon {N}anotubes},
      journal      = {Physical review applied},
      volume       = {5},
      number       = {5},
      issn         = {2331-7019},
      address      = {College Park, Md. [u.a.]},
      publisher    = {American Physical Society},
      reportid     = {FZJ-2016-04067},
      pages        = {054010},
      year         = {2016},
      abstract     = {We investigate magnetoresistance in spin valves involving
                      CoPd-contacted carbon nanotubes. Both thetemperature and
                      bias-voltage dependence clearly indicate tunneling
                      magnetoresistance as the origin. Weshow that this effect is
                      significantly affected by the tunnel-barrier strength, which
                      appears to be one reasonfor the variation between devices
                      previously detected in similar structures. Modeling the data
                      by means ofthe scattering matrix approach, we find a
                      nontrivial dependence of the magnetoresistance on the
                      barrierstrength. Furthermore, an analysis of the spin
                      precession observed in a nonlocal Hanle measurement yieldsa
                      spin lifetime of $tau_s=$ 1.1 ns, a value comparable with
                      those found in silicon- or graphene-based
                      spin-valvedevices.},
      cin          = {PGI-6 / PGI-9 / PGI-2 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-6-20110106 / I:(DE-Juel1)PGI-9-20110106 /
                      I:(DE-Juel1)PGI-2-20110106 / $I:(DE-82)080009_20140620$},
      pnm          = {522 - Controlling Spin-Based Phenomena (POF3-522)},
      pid          = {G:(DE-HGF)POF3-522},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000376274800001},
      doi          = {10.1103/PhysRevApplied.5.054010},
      url          = {https://juser.fz-juelich.de/record/811683},
}