Abstract
The five-fold surface of the Al70 Pd21 Mn9 quasicrystal has been studied using STM, LEED and AES. STM images from surfaces which have been sputtered and annealed to 875 K reveal 20-30 Å protrusions that have been identified by others as Mackay-type clusters. Higher-resolution images reveal substructures in these clusters having dimensions 2-3 Å. Longer annealing times at 875 K produced large areas having flat terraces which were imaged with atomic resolution. the LEED pattern from this surface has sharp spots on a low background, and AES indicates that the surface is deficient in Mn relative to the bulk. For surfaces annealed to 1050 K for less than 2 hours, STM images indicate that cluster and terrace phases coexist, and a third phase having aligned arrays of clusters is identified which appears to be intermediate between the cluster and terrace phases.
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References
J. M. Dubois, Physica Scripta, T49 A, 17 (1993).
N. Rivier, J. Non-Cryst. Solids 153/154, 458 (1993).
T. M. Schaub, D. E. Bürgler, H.-J. Güntherodt and J.-B. Suck, Phys. Rev. Lett. 73, 1255 (1994).
T. M. Schaub, D. E. Bürgler, C. M. Schimdt, H.-J. Güntherodt, J.-B. Suck, Z. Phys. B 96, 93 (1994).
T. M. Schaub, D. E. Bürgler, H.-J. Güntherodt, J. B. Suck, and M. Audier, Appl. Phys. A 61, 491 (1995).
T. M. Schaub, D. E. Bürgler, C. M. Schimdt, and H.-J. Güntherodt, J. Non-Cryst. Solids 205/207, 748 (1996).
Z. Shen, C. R. Stoldt, C. J. Jenks, and P. A. Thiel (private communication).
P. Ebert, M. Feuerbacher, N. Tamura, M. Wollgarten, and K. Urban, Phys. Rev. Lett. 18, 3827 (1996).
P. Ebert, F. Yue, and K. Urban, Phys. Rev. B 57, 2821 (1998).
J. Ledieu, A. W. Munz, T. M. Parker, R. McGrath, R. D. Diehl, D. W. Delaney, and T. A. Lograsso, in Proceedings of the 14th international Vacuum Congress (to be published in Surface Science).
M. Gierer, M. A. Van Hove, A. I. Goldman, S. -L. Chang, W. Z. Shen, C.-M. Zhang, C. J. Jenks, and P. A. Thiel, Phys. Rev. Lett. 78, 467 (1997).
M. Gierer, M. A. Van Hove, A. I. Goldman, Z. Shen, S.-L. Chang, P. J. Pinhero, C. J. Jenks, J. W. Anderegg, C.-M. Zhang, and P. A. Thiel, Phys. Rev. B 57, 7628 (1998).
P. Guyot, P. Kramer, and M. de Boissieu, Rep. Prog. Phys. 54, 1373 (1991).
D. Naumovic, P. Aebi, L. Schlapbach, and C. Beeli, in New Horizons in Quasicrystals: Research and Applications, edited by A. I. Goldman, D. J. Sordelet, P. A. Thiel and J. M. Dubois (World Scientific, Singapore, 1997), p.86
D. Naumovic’, P. Aebi, L. Schlapbach, C. Beeli, T. A. Lograsso and D. W. Delaney, in Proceedings of the 6th International on Quasicrystals, edited by S. Takeuchi and T. Fujiwara (World Scientific, Singapore, 1998), p.67.
D. Naumovic’, P. Aebi, C. Beeli, and L. Schlapbach, in Proceedings of the 14 th International Vacuum Congress (to be published in Surface Science).
Quasicrystals, A Primer, edited by C. Janot (Oxford Science, 1992), p. 187.
D. W. Delaney, T. E. Bloomer and T. A. Lograsso, in New Horizons in Quasicrystals: Research and Applications, edited by A. I. Goldman, D. J. Sordelet, P. A. Thiel and J. M. Dubois (World Scientific, Singapore, 1997), p.45.
C. Jenks, D. W. Delaney, T. E. Bloomer, S.-L. Chang, T. A. Lograsso, Z. Shen, C.-M. Zhang and P. A. Thiel, Applied Surface Science 103 (4), 485 (1996).
S.-L. Chang, W. B. Chin, C.-M. Zhang, C. J. Jenks and P. A. Thiel, Surface Science 337 (1995) 135.
A. L. Mackay, Acta Cryst. 15, 916 (1962); C.Janot, Phys. Rev. B 53, 181 (1996).
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Ledieu, J., Munz, A.W., Parker, T.M. et al. Clustered, Terraced and Mixed Surface Phases of the Al70Pd21Mn9 Quasicrystal. MRS Online Proceedings Library 553, 237–242 (1998). https://doi.org/10.1557/PROC-553-237
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DOI: https://doi.org/10.1557/PROC-553-237