Phys. Rev. Lett. Phys. Rev. A Phys. Rev. B Phys. Rev. C Phys. Rev. D Phys. Rev. E Phys. Rev. ST AB Rev. Mod. Phys. Phys. Rev. (Series I) Phys. Rev. Volume: Page/Article:

Phys. Rev. Lett. 72, 1557–1560 (1994)

[Issue 10 – 7 March 1994 ]

[ Previous article | Next article | Issue 10 contents ]

Magnetic moments in ultrathin Cr films on Fe(100)

C. Turtur and G. Bayreuther

Institut für Angewandte Physik, Universität Regensburg, 93040 Regensburg, Germany

Absolute magnetic moments of Cr are determined from in situ magnetometer measurements during growth of ultrathin Cr films on Fe(100). Cr moments in the first atomic layer are aligned antiparallel to the Fe moments and amount to >= 4µ_B for submonolayer coverage and 3µ_B for the first complete monolayer. This is the first experimental evidence of the huge moment enhancement predicted for Cr interfaces by band theory. Monte Carlo simulations indicate a drastic deviation from layer-antiferromagnetic order within the first 2–3 Cr atomic layers.

©1994 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v72/p1557
DOI: 10.1103/PhysRevLett.72.1557
PACS: 75.50.Rr, 75.30.Cr, 75.70.Ak

[ Previous article | Next article | Issue 10 contents ]

References

1. R. H. Victora and L. M. Falicov, Phys. Rev. B 31, 7335 (1985).
2. C. L. Fu, A. J. Freeman and T. Oguchi, Phys. Rev. Lett. 54, 2700 (1985).
3. P. Grünberg et al., Phys. Rev. Lett. 57, 2442 (1986).
4. M. N. Baibich et al., Phys. Rev. Lett. 61, 2472 (1988).
5. Zhu-Pei Shi, P. M. Levy and J. L. Fry, Phys. Rev. Lett. 69, 3678 (1992).
6. J. Unguris, R. J. Celotta and D. T. Pierce, Phys. Rev. Lett. 69, 1125 (1992).
7. F. U. Hillebrecht et al., Europhys. Lett. 19, 711 (1992).
8. Y. U. Idzerda et al., J. Appl. Phys. 73, 6204 (1993).
9. D. T. Pierce, R. J. Celotta and J. Unguris, J. Appl. Phys. 73, 6201 (1993).
10. P. J. Flanders, J. Appl. Phys. 63, 3940 (1988).
11. G. Lugert, G. Bayreuther, S. Lehner, G. Gruber and P. Bruno, Mater. Res. Soc. Symp. Proc. 232, 97 (1992).
12. S. Ohnishi, A. J. Freeman and M. Weinert, Phys. Rev. B 28, 6741 (1983).
13. S. Ohnishi, M. Weinert and A. J. Freeman, Phys. Rev. B 38, 36 (1984).
14. C. L. Fu and A. J. Freeman, Phys. Rev. B 33, 1755 (1986).
15. C. L. Fu and A. J. Freeman, J. Magn. Magn. Mater. 54-57, 777 (1986).
16. T. G. Walker et al., Phys. Rev. Lett. 69, 1121 (1992).

[ Previous article | Next article | Issue 10 contents ]

[ Home  | Browse  | Search  | Subscriptions  | Help  ]