• Corpus ID: 117143024

Enhancement of Spin Injection into Graphene by Water Dipping

@article{McCreary2011EnhancementOS,
  title={Enhancement of Spin Injection into Graphene by Water Dipping},
  author={Kathleen M. McCreary and Hua Wen and H Y Yu and Wei Han and Ezekiel Johnston-Halperin and Roland Kenji Kawakami},
  journal={arXiv: Materials Science},
  year={2011}
}
We immerse single layer graphene spin valves into purified water for a short duration (<1 min) and investigate the effect on spin transport. Following water immersion, we observe an enhancement in nonlocal magnetoresistance. Additionally, the enhancement of spin signal is correlated with an increase in junction resistance, which produces an increase in spin injection efficiency. This study provides a simple way to improve the signal magnitude and establishes the robustness of graphene spin… 
1 Citations
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TLDR
Graphene spin relaxation in graphene spin valves is investigated and strongly contrasting behavior for single-layer graphene (SLG) and bilayer graphene (BLG) is observed, which indicates the dominance of Dyakonov-Perel spin relaxation at low temperatures.
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TLDR
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