Spin-Polarized Scanning Tunnelling Microscopy of Ultrathin Films

• Authors: A Kukunin , J Prokop , H Elmers
• Languages of publication: EN

Abstracts

EN

Using low temperature spin-polarized scanning tunneling microscopy we have studied the morphology and magnetic properties of ultrathin Fe(0.5 ML)Au(0.5 ML) nanowires prepared on a Mo(110) single crystal. The Fe nanostripes grown by step flow on a Mo(110) at 700 K were covered by Au at RT, and subsequently annealed at 700 K. Differences in the morphology of Au on Fe(110)/Mo(110) and clean Mo(110) surfaces are observed and discussed. After annealing, the Mo is covered by a homogeneous FeAu ML alloy with several iron enriched islands which reveal an out-of-plane magnetic contrast. Direct lateral exchange coupling has been observed for these islands.

Keywords

EN

75.75.+a; 68.37.Ef; 81.15.-z

Discipline

• 68.37.Ef: Scanning tunneling microscopy (including chemistry induced with STM)
• 81.15.-z: Methods of deposition of films and coatings; film growth and epitaxy(for structure of thin films, see 68.55.-a; see also 85.40.Sz Deposition technology in microelectronics; for epitaxial dielectric films, see 77.55.Px)

• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 109
• Issue: 3
• Pages: 371-375

Dates

published

2006-03

received

2005-05-20

Contributors

author

A Kukunin

• Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55099 Mainz, Germany

author

J Prokop

• Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55099 Mainz, Germany

author

H Elmers

• Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55099 Mainz, Germany

References

• 1. S. Heinze, M. Bode, A. Kubetzka, O. Pietzsch, X. Nie, S. Blügel, R. Wiesendanger, Science, 288, 1805, 2000
• 2. W. Wulfhekel, J. Kirschner, Appl. Phys. Lett., 75, 1944, 1999
• 3. M. Bode, Rep. Prog. Phys., 66, 523, 2003
• 4. S.A. Wolf, D.D. Awschalom, R.A. Buhrman, J.M. Daughton, S. von Molnár, M.L. Roukes, A.Y. Chtchelkanova, D.M. Treger, Science, 294, 1488, 2001
• 5. F.J. Himpsel, J.E. Ortega, G.J. Mankey, R.F. Willis, Adv. Phys., 47, 511, 1998
• 6. A. Christensen, A.V. Ruban, P. Stoltze, K.W. Jacobsen, H.L. Skriver, J.K. Norskov, F. Besenbacher, Phys. Rev. B, 56, 5822, 1997
• 7. O.S. Hernán, A.L. Vázquez de Parga, J.M. Gallego, R. Miranda, Surf. Sci., 415, 106, 1998
• 8. N. Spiridis, J. Korecki, Surf. Sci., 507-510, 135, 2002
• 9. S.D. Bader, E.R. Moog, J. Appl. Phys., 61, 3729, 1987
• 10. F.J. Himpsel, Phys. Rev. B, 44, 5966, 1991
• 11. K. Shintaku, Y. Daitoh, T. Shinjo, Phys. Rev. B, 47, 14584, 1993
• 12. J. Unguris, R.J. Celotta, D.T. Pierce, J. Appl. Phys., 75, 6437, 1994
• 13. S.N. Okuno, K. Inomata, Phys. Rev. B, 51, 6139, 1995
• 14. T. Duden, E. Bauer, in: Magnetic Ultrathin Films, Multilayers and Surfaces, Vol. 475, Mater. Res. Soc., Pittsburgh (PA USA) 1997, p. 283
• 15. J. Prokop, A. Kukunin, H.J. Elmers, Phys. Rev. B, 73, 014428, 2006
• 16. M. Bode, O. Pietzsch, A. Kubetzka, R. Wiesendanger, Phys. Rev. Lett., 92, 067201, 2004
• 17. U. Gradmann, G. Liu, H.J. Elmers, M. Przybylski, Hyp. Interact., 57, 1845, 1990

Identifiers

DOI

10.12693/APhysPolA.109.371