Spin-Sensitive Conductance in Magnetically Contacted Graphene Flakes

• Authors: S. Krompiewski
• Languages of publication: EN

Abstracts

EN

The aim of this study is to gain a deeper insight into the impact of geometrical dimensions (aspect ratio) and current direction (zigzag vs. armchair) on transport characteristics. It is found that there is a pronounced dependence of the giant magnetoresistance (in setups with 2 ferromagnetic electrodes), as well as the spin polarization of current (in the case of one paramagnetic and one ferromagnetic electrode) on the bias and gate voltages, meaning a possible electrical control of magnetic properties of these quantities.

Keywords

EN

72.25.Mk; 81.05.ue; 73.20.-r

Discipline

• 73.20.-r: Electron states at surfaces and interfaces
• 72.25.Mk: Spin transport through interfaces
• 81.05.ue: Graphene(for structure of graphene, see 61.48.Gh; for phonons in graphene, see 63.22.Rc; for thermal properties, see 65.80.Ck; for graphene films, see 68.65.Pq; for electronic transport, see 72.80.Vp; for electronic structure, see 73.22.Pr; for optical properties, see 78.67.Wj)

• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 5
• Pages: 835-836

Dates

published

2010-11

Contributors

author

S. Krompiewski

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

References

• 1. K. Tsukagoshi, B.W. Alphenaar, H. Ago, Nature (London) 401, 572 (1999)
• 2. E. Hill, A.K. Geim, K. Novoselov, F. Schedin, P. Blake, IEEE Trans. Magn. 42, 2694 (2006)
• 3. S. Krompiewski, Phys. Rev. B 80, 075433 (2009)
• 4. S. Krompiewski, Physica Status Solidi B 242, 226 (2005)
• 5. Ch.A. Merchant, N. Markovic, Phys. Rev. Lett. 100, 156601 (2008)
• 6. I. Weymann, J. Barnaś, S. Krompiewski, Phys. Rev. B 78, 035422 (2008)

Identifiers

DOI

10.12693/APhysPolA.118.835