dc.contributor.author | Itskos, Grigorios | en |
dc.contributor.author | Murray, R. | en |
dc.contributor.author | Meeder, A. | en |
dc.contributor.author | Papathanasiou, Niklas | en |
dc.contributor.author | Lux-Steiner, M. Ch | en |
dc.creator | Itskos, Grigorios | en |
dc.creator | Murray, R. | en |
dc.creator | Meeder, A. | en |
dc.creator | Papathanasiou, Niklas | en |
dc.creator | Lux-Steiner, M. Ch | en |
dc.date.accessioned | 2019-12-02T15:30:37Z | |
dc.date.available | 2019-12-02T15:30:37Z | |
dc.date.issued | 2006 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/58744 | |
dc.description.abstract | We have investigated polarization-resolved photoluminescence in epitaxially grown CuGaSe2/GaAs(001) films. Spin-polarized excitons are optically excited both below and above the characteristic crystal field splitting of the chalcopyrite. At low temperatures, a large exciton spin polarization of 35% is measured under resonant pumping but this is reduced by an order of magnitude and reverses its sign for nonresonant excitation. The measurements suggest that optical pumping within a small energy window just above the band gap results in the preferential generation of light holes and electrons that exhibit a long spin relaxation time, comparable to the recombination time in CuGaSe 2. © 2006 American Institute of Physics. | en |
dc.source | Applied Physics Letters | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-33746312886&doi=10.1063%2f1.2233684&partnerID=40&md5=9885e6e2237117fac7acd4346f953bc6 | |
dc.subject | Polarization | en |
dc.subject | Thin films | en |
dc.subject | Electrons | en |
dc.subject | Photoluminescence | en |
dc.subject | Optical pumping | en |
dc.subject | Copper compounds | en |
dc.subject | Excitons | en |
dc.subject | Semiconducting gallium compounds | en |
dc.subject | Chalcopyrite | en |
dc.subject | Exciton spin polarization | en |
dc.subject | Light holes | en |
dc.subject | Nonresonant excitation | en |
dc.title | Optical spin injection in CuGaSe2/GaAs films | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1063/1.2233684 | |
dc.description.volume | 89 | |
dc.description.issue | 3 | |
dc.author.faculty | Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Φυσικής / Department of Physics | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :4</p> | en |
dc.source.abbreviation | Appl.Phys.Lett. | en |
dc.contributor.orcid | Itskos, Grigorios [0000-0003-3971-3801] | |
dc.gnosis.orcid | 0000-0003-3971-3801 | |