Spin dependent transport properties in spin-LEDs: a survey

Pol Van Dorpe; Wim Van Roy; Jo De Boeck; Gustaaf Borghs

doi:10.1117/12.582683

25 March 2005 Spin dependent transport properties in spin-LEDs: a survey

Pol Van Dorpe, Wim Van Roy, Jo De Boeck, Gustaaf Borghs

Proceedings Volume 5732, Quantum Sensing and Nanophotonic Devices II; (2005) https://doi.org/10.1117/12.582683
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

Abstract

Optical characterization is a powerful tool for assessment of spin-injection properties in spin-LEDs. We show a comparison of spin-dependent transport properties in LEDs with different spin-injector structures including ferromagnet/tunnel-barrier or Schottky-barrier injectors and magnetic semiconductors. Using these devices, room temperature spin-injection and voltage-controlled injection has been achieved. The optical technique used is the Oblique Hanle Effect. Features such as spin-nuclear interactions can be clearly demonstrated in such spin-LED structures. Finally we discuss the design of a spin-dependent contact that can supply both electrical spin injection as electrical spin detection.

Citation Download Citation

Pol Van Dorpe, Wim Van Roy, Jo De Boeck, and Gustaaf Borghs "Spin dependent transport properties in spin-LEDs: a survey", Proc. SPIE 5732, Quantum Sensing and Nanophotonic Devices II, (25 March 2005); https://doi.org/10.1117/12.582683

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