New standard of spin detectors

Nicolas Rougemaille

doi:10.1117/12.479610

1 July 2003 New standard of spin detectors

Nicolas Rougemaille

Proceedings Volume 4999, Quantum Sensing: Evolution and Revolution from Past to Future; (2003) https://doi.org/10.1117/12.479610
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States

Abstract

This paper is a summary of experimental results obtained on spin-dependent transmission of hot electrons through thin ferromagnetic films. The goal of this contribution is to demonstrate that very simple devices can be used for measuring the spin polarization of a free electron beam. Both cases of free-standing magnetic metal foils and ferromagnetic metal/semiconductor Schottky diode are studied here and analyzed in terms of electron spin detection. In these experiments an electron beam is injected from vacuum into the magnetic thin film with controlled energy and spin polarization. The spin-dependence of the transmitted current, originating from the spin-filtering through the magnetic layer, yields a new and efficient way for measuring the incident electron beam polarization.

Citation Download Citation

Nicolas Rougemaille "New standard of spin detectors", Proc. SPIE 4999, Quantum Sensing: Evolution and Revolution from Past to Future, (1 July 2003); https://doi.org/10.1117/12.479610

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