Electrical memory features of ferromagnetic CoFeAlSi nano-particles embedded in metal-oxide-semiconductor matrix

  • Lee, JaBin
  • Kim, KiWoong
  • Lee, JunSeok
  • An, GwangGuk
  • Hong, JinPyo
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초록

Half-metallic Heusler material Co(2)FeAl(0.5)Si(0.5) (CFAS) nano-particles (NPs) embedded in metal-oxide-semiconductor (MOS) structures with thin HfO(2) tunneling and MgO control oxides were investigated. The CFAS NPs were prepared by rapid thermal annealing. The formation of well-controlled CFAS NPs on thin HfO(2) tunneling oxide was confirmed by atomic force microscopy (AFM). Memory characteristics of CFAS NPs in MOS devices exhibited a large memory window of 4.65 V. as well as good retention and endurance times of 10(5) cycles and 10(9) s, respectively, demonstrating the potential of CFAS NPs as promising candidates for use in charge storage.

키워드

SputteringHeusler materialCo2FeAl0.5Si0.5NanoparticlesMetal-oxide-semiconductorCapacitance-voltageAtomic force microscopyCarbon dioxideDielectric devicesHafnium oxidesIron compoundsMetallic compoundsMOS devicesNanoparticlesRapid thermal annealingSemiconductor devicesVanadium
제목
Electrical memory features of ferromagnetic CoFeAlSi nano-particles embedded in metal-oxide-semiconductor matrix
저자
Lee, JaBinKim, KiWoongLee, JunSeokAn, GwangGukHong, JinPyo
DOI
10.1016/j.tsf.2011.04.024
발행일
2011-07
유형
Article
저널명
Thin Solid Films
519
18
페이지
6160 ~ 6163