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- Title
- Optical characterizations of GaAs-based spin light emitting diodes using Fe3O4 spin injectors
- Publication Year
- 2012-09-01
- Abstract
- WefabricatedGaAs-basedspin-LED(lightemittingdiode)structuresusinghalf-metallicFe3O4asspininjectorsandmeasuredthecircularpolarizationoftheelectroluminescence(EL).ThecircularpolarizationoftheELduetothespininjectionwasimprovedbythelowtemperaturegrowthoftheferromagneticlayer,comparedtotheroomtemperaturegrowth.Wealsostudiedtheexcitationwavelengthdependenceofthephotoluminescence(PL)spectraandthevariationoftheELspectrawithincreasingcurrent.TheexcesscarrierdependenceoftheELpeakswasfoundtobedifferentfromthatofthePLpeaks,whichwasexplainedbythecarrierinjectionintothebufferlayer.
- Keyword
- Spinlightemittingdiodes; Halfmetal; Electroluminescence; Photoluminescence
- Journal Title
- CurrentAppliedPhysics
- Citation Volume
- 12
- ISSN
- 1567-1739
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- There are no files associated with this item.
- Appears in Collections:
- 7. KISTI 연구성과 > 학술지 발표논문
