ScienceDirect - Surface Science: Surfactant properties of chemisorbed oxygen in Fe/Fe(001) homoepitaxy: a He diffraction study

Surfactant properties of chemisorbed oxygen in Fe/Fe(001) homoepitaxy: a He diffraction study

Abstract

Article Outline

References

Quick Search: within

130 of 211

	This document
		SummaryPlus
		Article
		Journal Format-PDF (138 K)

	Actions
		Cited By
		Save as Citation Alert
		Export Citation

Surface Science

Volumes 454-456
20 May 2000
Pages 697-701

PII: S0039-6028(00)00114-X
Copyright © 2000 Elsevier Science B.V. All rights reserved.

P. Bonanno, M. Canepa ^,, P. Cantini, R. Moroni, L. Mattera and S. Terreni

Istituto Nazionale di Fisica della Materia (INFM) and CFSBT/CNR Dipartimento di Fisica, Universitá di Genova, via Dodecaneso 33, I-16146 Genoa, Italy

Available online 31 May 2000.

He diffraction measurements show that preadsorption of an O(1×1) phase on Fe(001) promotes two-dimensional growth of Fe at temperatures below 400 K, in contrast to the island growth observed on the bare Fe(001) surface. Oxygen floats at the surface, acting as a surfactant. After repeated cycles of film annealing and Fe re-deposition, a beat is observed in the pattern of He reflectivity measured as a function of deposition time. The beat is assigned to the growth on surface domains characterized by a different surfactant efficiency.

Author Keywords: Atom_¯solid scattering and diffraction _¯ elastic; Growth; Iron; Low index single crystal surfaces; Oxygen

Acknowledgements
References

(8K)
Fig. 1. He (k_i=5.87 Å^-1) reflectivity measured as a function of time during Fe growth on Fe(001). Arrows indicate shutter closure. (A) T_s=300 K; deposition rate: 1.5 ML/min; (B) T_s=415 K; deposition rate: 1 ML/min; (C) T_s=500 K; deposition rate: 0.5 ML/min; (D) T_s=715 K; deposition rate: 1 ML/min.

(5K)
Fig. 2. He (k_i=5.87 Å^-1) reflectivity measured as a function of time during Fe growth upon a freshly prepared O(1×1)-Fe(001) phase; T_s=350 K; deposition rate 4.21 ML/min. The arrow indicates shutter closure.

(6K)
Fig. 3. Comparison between Eq. (1) (solid line) and the He reflectivity measured during oxygen-assisted Fe growth (T_s=350 K; deposition rate ~3 ML/min) after several annealing/re-deposition cycles (see text for details on the fit). In order to aid comparison, the experimental curve is represented here by open circles.

Subject View:

1. M. Copel, M.C. Reuter, E. Kaxiras and R.M. Tromp. Phys. Rev. Lett. 63 (1989), p. 632. Abstract-INSPEC | $Order Document | Full-text via CrossRef

2. B. Voigtländer and A. Zinner. Surf. Sci. 292 (1993), p. L775. Abstract-INSPEC | Abstract-Compendex | $Order Document

3. H.A. van der Vegt, H.M. van Pinxteren, M. Lohmeier and E. Vlieg. Phys. Rev. Lett. 68 (1992), p. 3335. Abstract-INSPEC | $Order Document | Full-text via CrossRef

4. J. Camarero, J. Ferrón, V. Cros, L. Gómez, A.L. Vázquez de Parga, J.M. Gallego, J.E. Prieto, J.J. de Miguel and R. Miranda. Phys. Rev. Lett. 81 (1998), p. 850. Abstract-INSPEC | $Order Document | Full-text via CrossRef | APS full text

5. S. Oppo, V. Fiorentini and M. Scheffler. Phys. Rev. Lett. 71 (1993), p. 2437. Abstract-INSPEC | $Order Document | Full-text via CrossRef

6. Z. Zhang and M. Lagally. Phys. Rev. Lett. 72 (1994), p. 693. Full-text via CrossRef

7. I. Markov. Phys. Rev. B 53 (1996), p. 4148. Abstract-INSPEC | $Order Document | Full-text via CrossRef

8. L. Gómez, S. Bourgeal, J. Ibañez and M. Salmerón. Phys. Rev. B 31 (1985), p. 2551. Abstract-INSPEC | $Order Document | Full-text via CrossRef

9. R. Kunkel, B. Poelsema, L.K. Verheij and G. Comsa. Phys. Rev. Lett. 65 (1990), p. 733. Abstract-INSPEC | $Order Document | Full-text via CrossRef

10. H. Xu, Y. Yang and T. Engel. Surf. Sci. 255 (1991), p. 73. Abstract-Compendex | $Order Document

11. B.J. Hinch, C. Cozziol, J.P. Toennies and G. Zhang. Europhys. Lett. 10 (1989), p. 341. Abstract-INSPEC | $Order Document

12. H. Zeng and G. Vidali. Phys. Rev. Lett. 74 (1995), p. 582. Full-text via CrossRef

13. A. Crottini, D. Cvetko, L. Floreano, R. Gotter, A. Morgante and F. Tommasini. Phys. Rev. Lett. 79 (1997), p. 1527. Abstract-INSPEC | $Order Document | Full-text via CrossRef | APS full text

14. J. Camarero, L. Spendeler, G. Schmidt, K. Heinz, J.J. de Miguel and R. Miranda. Phys. Rev. Lett. 73 (1994), p. 2448. Abstract-INSPEC | $Order Document | Full-text via CrossRef

15. C. Tölkes, R. Struck, R. David, P. Zeppenfeld and G. Comsa. Phys. Rev. Lett. 80 (1998), p. 2877. Abstract-INSPEC | $Order Document | APS full text

16. A.M. Dabiran, S.M. Seutter and P.I. Cohen. Surf. Rev. Lett. 5 (1998), p. 783. Abstract-INSPEC | $Order Document

17. M. Canepa, C. Guarnaschelli, L. Mattera, M. Polese, S. Terreni and D. Truffelli. Rev. Sci. Instrum. 62 (1991), p. 1431. Abstract-INSPEC | $Order Document | Full-text via CrossRef

18. P. Heimann and H. Neddermeyer. Phys. Rev. B 18 (1978), p. 3537. Abstract-INSPEC | $Order Document

19. P.I. Cohen, G.S. Petrich, P.R. Pukite, G.J. Whaley and A.S. Arrott. Surf. Sci. 216 (1989), p. 222. Abstract-INSPEC | $Order Document

20. J.A. Stroscio, D.T. Pierce and R.A. Dragoset. Phys. Rev. Lett. 70 (1993), p. 3615. Abstract-INSPEC | $Order Document | Full-text via CrossRef

21. M. Canepa, S. Terreni, P. Cantini, A. Campora and L. Mattera. Phys. Rev. B 56 (1997), p. 4233. Abstract-INSPEC | $Order Document | Full-text via CrossRef | APS full text

22. M.C. Bartelt and J.W. Evans. Phys. Rev. Lett. 75 (1995), p. 4250. Abstract-INSPEC | $Order Document | Full-text via CrossRef

23. D. Farias and K.H. Rieder. Rep. Prog. Phys. 61 (1998), p. 1575. Abstract-INSPEC | $Order Document | Full-text via CrossRef

24. G. Panzner, D.R. Müller and T.N. Rhodin. Phys. Rev. B 32 (1985), p. 3472. Abstract-INSPEC | $Order Document | Full-text via CrossRef

25. B. Poelsema, A.F. Becker, G. Rosenfeld, R. Kunkel, N. Nagel, L. Verheij and G. Comsa. Surf. Sci. 272 (1992), p. 269. Abstract-INSPEC | Abstract-Compendex | $Order Document

26. F. Bisio, R. Moroni, M. Canepa, L. Mattera, R. Bertacco and F. Ciccacci. Phys. Rev. Lett. 83 (1999), p. 4868. Abstract-INSPEC | $Order Document | Full-text via CrossRef | APS full text

27. M. Yata, H. Rouch and K. Nakamura. Phys. Rev. B 56 (1997), p. 10579. Abstract-INSPEC | $Order Document | Full-text via CrossRef | APS full text

28. G.W. Simmons and D.J. Dwyer. Surf. Sci. 48 (1975), p. 373. Abstract-INSPEC | $Order Document

Corresponding author. Fax: +39-010-311066; email: canepa@fisica.unige.it

This document

SummaryPlus

Article

Journal Format-PDF (138 K)

Actions

Cited By

Save as Citation Alert

Export Citation

Surface Science
Volumes 454-456
20 May 2000
Pages 697-701

130 of 211

Send feedback to ScienceDirect
Software and compilation © 2002 ScienceDirect. All rights reserved.
ScienceDirect® is an Elsevier Science B.V. registered trademark.

Your use of this service is governed by Terms and Conditions. Please review our Privacy Policy for details on how we protect information that you supply.