Spin-polarized tunneling through a ferromagnetic insulator

Kok, M. and Beukers, J.N. and Brinkman, A. (2009) Spin-polarized tunneling through a ferromagnetic insulator. Journal of Applied Physics, 105 (7). 07C919. ISSN 0021-8979

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Abstract:	The polarization of the tunnel conductance of spin-selective ferromagnetic insulators is modeled, providing a generalized concept of polarization including both the effects of electrode and barrier polarization. The polarization model is extended to take additional non-spin-polarizing insulating layers into account. These additional tunnel barriers are found to have a large effect on the tunneling polarization, both positively and negatively, depending on the material parameters. The model is applied to spin-filter devices containing the promising spin filter material EuO
Item Type:	Article
Copyright:	© 2009 American Institute of Physics
Faculty:	Science and Technology (TNW)
Research Group:	Low Temperatures - Biomagnetism (LT)
Link to this item:	http://purl.utwente.nl/publications/73743
Official URL:	http://dx.doi.org/10.1063/1.3068643
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