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2009 | 7 | 2 | 291-294
Tytuł artykułu

STM investigation of cobalt silicide nanostructures’ growth on Si(111)-(√19 Ã- √19) substrate

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Continuing miniaturization of electronic devices necessarily requires assembly of several different objects or devices in a small space. Therefore, besides thin films growth, the possibility of fabricating wires and dots [1, 2] at the nanometre scale composed of metal silicides is of the top interest. This report is about the STM/STS investigation of cobalt silicides’ nanostructures created on Si(111)-(√19 Ã- √19) substrates via Co evaporation and post deposition annealing. This (√19 Ã- √19) reconstruction was induced by Ni doping. Less than 1ML of Co on surface was obtained. Surface reconstruction induced growth of agglomerates of clusters rather than an uniform layer. The post deposition annealing of a crystal sample (up to 670 K, 770 K, 870 K, 970 K, 1070 K and 1170 K) led to creation of silicides’ nanostructures. Measurements showed that coalescence of Co nanoislands begun around 970 K. Annealing above 1070 K led to alloying of a Co, Ni and Si. As a consequence the Si(111)-(7Ã-7) reconstruction occurred at the cost of Si(111)-(√19 Ã- √19).
Słowa kluczowe
EN
Wydawca

Czasopismo
Rocznik
Tom
7
Numer
2
Strony
291-294
Opis fizyczny
Daty
wydano
2009-06-01
online
2009-04-26
Twórcy
  • Institute of Physics, Faculty of Technical Physics, Poznan University of Technology, Nieszawska 13A, 60-965, Poznan, Poland, mcegiel@gmail.com
  • Institute of Physics, Faculty of Technical Physics, Poznan University of Technology, Nieszawska 13A, 60-965, Poznan, Poland
  • Institute of Physics, Faculty of Technical Physics, Poznan University of Technology, Nieszawska 13A, 60-965, Poznan, Poland
Bibliografia
  • [1] A. Wawro, S. Suto, R. Czajka, A. Kasuya, Phys. Rev. B 67, 195401 (2003) http://dx.doi.org/10.1103/PhysRevB.67.195401[Crossref]
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  • [6] I. Goldfarb, G. Cohen-Taguri, S. Grossman, M. Levinshtein, Phys. Rev. B 72, 075430 (2005) http://dx.doi.org/10.1103/PhysRevB.72.075430[Crossref]
  • [7] M.A.K. Zilani et al., J. Phys. Cond. Matt. 18, 6987 (2006) http://dx.doi.org/10.1088/0953-8984/18/30/004[Crossref]
  • [8] P.A. Bennett, M. Copel, D. Cahill, J. Falta, R.M. Tromp, Phys. Rev. Lett. 69, 1224 (1992) http://dx.doi.org/10.1103/PhysRevLett.69.1224[Crossref]
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  • [13] F. Aguilera-Granja, J.M. Montejano-Carrizales, J. Guevara, A.M. Llois, Phys. Stat. Sol. 455, 220 (2000)
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11534-008-0141-y
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