Efficient room-temperature spin detector based on GaNAs
2012 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 111, no 7, 07C303- p.Article in journal (Refereed) Published
Efficient and highly spin-dependent recombination processes are shown to not only turn GaNAs into an efficient spin filter but also to make it an excellent spin detector functional at room temperature (RT). By taking advantage of the defect-engineered spin-filtering effect, the spin detection efficiency is no longer limited by the fast spin relaxation of conduction electrons. This leads to a significant enhancement in the optical polarization of the spin detector, making it possible to reliably detect even very weak electron spin polarization at RT, as demonstrated by a study of spin loss during optical spin injection across a GaAs/GaNAs interface.
Place, publisher, year, edition, pages
American Institute of Physics (AIP) , 2012. Vol. 111, no 7, 07C303- p.
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-78283DOI: 10.1063/1.3671781ISI: 000303282401019OAI: oai:DiVA.org:liu-78283DiVA: diva2:531814