Composition-Tuned ConSi Nanowires: Location-Selective Simultaneous Growth along Temperature Gradient

  • Seo, Kwanyong
  • Lee, Sunghun
  • Yoon, Hana
  • In, Juneho
  • Varadwaj, Kumar S. K.
  • ... Jung, Myung-Hwa
  • 외 3명
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초록

We report the simultaneous and selective synthesis of sing le-crystalline ConSi NWs (n = 1-3) and their corresponding crystal structures-simple cubic (CoSi), orthorhombic (Co2Si), and face-centered cubic (Co3Si)-following a composition change. ConSi NWs were synthesized by placing the sapphire substrates along a temperature gradient. The synthetic process is a successful demonstration of tuning the chemical composition in ConSi NWs. The synthesis and detailed crystal structure of single-crystalline Co2Si and Co3Si are reported for the first time including the bulk and the nanostructure phases. The electrical and magnetic properties of Co2Si NWs are investigated and compared with those of CoSi NWs.

키워드

nanowirestransition metal silicidescobalt silicidesingle-crystallinecrystal engineeringmetastable compoundsCHROMIUM DISILICIDE NANOWIRESSILICIDE NANOWIRESCRYSTALLINEMAGNETORESISTANCE
제목
Composition-Tuned ConSi Nanowires: Location-Selective Simultaneous Growth along Temperature Gradient
저자
Seo, KwanyongLee, SunghunYoon, HanaIn, JunehoVaradwaj, Kumar S. K.Jo, YounghunJung, Myung-HwaKim, JinheeKim, Bongsoo
DOI
10.1021/nn900191g
발행일
2009-05
유형
Article
저널명
ACS Nano
3
5
페이지
1145 ~ 1150