• DOI:10.1063/1.4874919
• Corpus ID: 118466825

Fabrication and characterisation of nanospintronic devices

@inproceedings{Samm2013FabricationAC,
  title={Fabrication and characterisation of nanospintronic devices},
  author={J. Samm and Jorg Gramich and Andreas Baumgartner and Markus Weiss and Christian Schoenenberger},
  year={2013}
}

• J. Samm, J. Gramich, +2 authors C. Schoenenberger
• Published 30 November 2013
• Physics

We report an improved fabrication scheme for carbon based nanospintronic devices and demonstrate the necessity for a careful data analysis to investigate the fundamental physical mechanisms leading to magnetoresistance. The processing with a low-density polymer and an optimised recipe allows us to improve the electrical, magnetic and structural quality of ferromagnetic Permalloy contacts on lateral carbon nanotube (CNT) quantum dot spin valve devices, with comparable results for thermal and sputter deposition of the material. We show that spintronic nanostructures require an extended data analysis, since the magnetisation can affect all characteristic parameters of the conductance features and lead to seemingly anomalous spin transport. In addition, we report measurements on CNT quantum dot spin valves that seem not to be compatible with the orthodox theories for spin transport in such structures. PACS numbers: 85.75.-d, 72.25.-b, 75.47.-m ar X iv :1 31 2. 01 59 v1 [ co nd -m at .m es -h al l] 3 0 N ov 2 01 3 Nanospintronic devices 2