Oscillatory magnetic properties

IBM Journal of Research and Development

Volumn 42, Issue 1, 1998, Pages 7-23

  Allenspach, R ^a,b,c   Weber, W ^b,d,e  

^a IBM RESEARCH ZURICH   (Switzerland)

^b ETH ZURICH   (Switzerland)

^c Institute of Physics   (United Kingdom)

^d UNIVERSITY OF COLOGNE   (Germany)

^e RWTH AACHEN UNIVERSITY   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

COBALT; EPITAXIAL GROWTH; MAGNETIC ANISOTROPY; MAGNETIC FILMS; MAGNETIC MOMENTS; MAGNETOOPTICAL EFFECTS; OSCILLATIONS;

OSCILLATORY EXCHANGE COUPLING;

MAGNETIC COUPLINGS;

EID: 0031600886     PISSN: 00188646     EISSN: None     Source Type: Journal    
DOI: 10.1147/rd.421.0007     Document Type: Article

References (85)

1. C. F. Majkrzak, J. W. Cable, J. Kwo, M. Hong, D. B. McWhan, Y. Yafet, J. V. Waszczak, and C. Vettier, "Observation of a Magnetic Antiphase Domain Structure with Long-Range Order in a Synthetic Gd-Y Superlattice," Phys. Rev. Lett. 56, 2700-2703 (1986).
2. J. Kwo, M. Hong, F. J. DiSalvo, J. V. Waszczak, and C. F. Majkrzak, "Modulated Magnetic Properties in Synthetic Rare-Earth Gd-Y Superlattices," Phys. Rev. B 35, 7295-7298 (1987).
3. S. S. P. Parkin, N. More, and K. P. Roche, "Oscillations in Exchange Coupling and Magnetoresistance in Metallic Superlattice Structures: Co/Ru, Co/Cr, and Fe/Cr," Phys. Rev. Lett. 64, 2304-2307 (1990).
4. M. N. Baibich, J. M. Broto, A. Fert, F. Nguyen Van Dau, F. Petroff, P. Etienne, G. Creuzet, A. Friederich, and J. Chazelas, "Giant Magnetoresistance of (001)Fe/(001)Cr Magnetic Superlattices," Phys. Rev. Lett. 61, 2472-2475 (1988).
5. G. Binasch, P. Grünberg, F. Saurenbach, and W. Zinn, "Enhanced Magnetoresistance in Layered Magnetic Structures with Antiferromagnetic Interlayer Exchange," Phys. Rev. B 39, 4828-4830 (1989).
6. W. Geerts, Y. Suzuki, T. Katayama, K. Ando, and S. Yoshida, "Thickness-Dependent Oscillation of the Magneto-Optical Properties of Au-Sandwiched (001) Fe Films," Phys. Rev. B 50, 12581-12586 (1994).
7. R. Mégy, A. Bounouh, Y. Suzuki, P. Beauvillain, P. Bruno, C. Chappert, B. Lecuyer, and P. Veillet, "Magneto-Optical-Kerr-Effect Study of Spin Polarized Quantum Well States in a Au Overlayer on a Co(0001) Ultrathin Film," Phys. Rev. B 51, 5586-5589 (1995).
8. A. Carl and D. Weller, "Oscillatory Paramagnetic Magneto-Optical Kerr Effect in Ru Wedges on Co," Phys. Rev. Lett. 74, 190-193 (1995).
9. H. A. Wierenga, W. de Jong, M. W. J. Prins, Th. Rasing, R. Vollmer, A. Kirilyuk, H. Schwabe, and J. Kirschner, "Interface Magnetism and Possible Quantum Well Oscillations in Ultrathin Co/Cu Films Observed by Magnetization Induced Second Harmonic Generation," Phys. Rev. Lett. 74, 1462-1465 (1995).
10. W. Weber, C. H. Back, A. Bischof, Ch. Würsch, and R. Allenspach, "Morphology-Induced Oscillations of the Magnetic Anisotropy in Ultrathin Co Films," Phys. Rev. Lett. 76, 1940-1943 (1996).
11. W. Weber, A. Bischof, R. Allenspach, Ch. Würsch, C. H. Back, and D. Pescia, "Oscillatory Magnetic Anisotropy and Quantum Well States in Cu/Co/Cu(100) Films," Phys. Rev. Lett. 76, 3424-3427 (1996).
12. T. Miller, A. Samsavar, G. E. Franklin, and T.-C. Chiang, "Quantum-Well States in a Metallic System: Ag on Au(111)," Phys. Rev. Lett. 61, 1404-1407 (1988).
13. J. E. Ortega, F. J. Himpsel, G. J. Mankey, and R. F. Willis, "Quantum-Well States and Magnetic Coupling Between Ferromagnets Through a Noble-Metal Layer," Phys. Rev. B 47, 1540-1552 (1993).
14. K. Garrison, Y. Chang, and P. D. Johnson, "Spin Polarization of Quantum Well States in Copper Thin Films Deposited on a Co(001) Substrate," Phys. Rev. Lett. 71, 2801-2804 (1993).
15. C. Carbone, E. Vescovo, O. Rader, W. Gudat, and W. Eberhardt, "Exchange-Split Quantum Well States of a Noble Metal Film on a Magnetic Substrate," Phys. Rev. Lett. 71, 2805-2808 (1993).
16. P. Grünberg, R. Schreiber, Y. Pang, M. B. Brodsky, and H. Sowers, "Layered Magnetic Structures: Evidence for Antiferromagnetic Coupling of Fe Layers Across Cr Interlayers," Phys. Rev. Lett. 57, 2442-2445 (1986).
17. S. S. P. Parkin, "Systematic Variation of the Strength and Oscillation Period of Indirect Magnetic Exchange Coupling Through 3d, 4d, and 5d Transition Metals," Phys. Rev. Lett. 67, 3598-3601 (1991).
18. D. M. Edwards, J. Mathon, R. B. Muniz, and M. S. Phan, "Oscillations of the Exchange in Magnetic Multilayers as an Analog of de Haas-van Alphen Effect," Phys. Rev. Lett. 67, 493-496 (1991).
19. P. Lang, L. Nordström, R. Zeller, and P. H. Dederichs, "Ab Initio Calculations of the Exchange Coupling of Fe and Co Monolayers in Cu," Phys. Rev. Lett. 71, 1927-1930 (1993); L. Nordström, P. Lang, R. Zeller, and P. H. Dederichs, "Influence of the Magnetic-Layer Thickness on the Interlayer Exchange Coupling: Competition Between Oscillation Periods," Phys. Rev. B 50, 13058-13061 (1994).
20. P. Lang, L. Nordström, R. Zeller, and P. H. Dederichs, "Ab Initio Calculations of the Exchange Coupling of Fe and Co Monolayers in Cu," Phys. Rev. Lett. 71, 1927-1930 (1993); L. Nordström, P. Lang, R. Zeller, and P. H. Dederichs, "Influence of the Magnetic-Layer Thickness on the Interlayer Exchange Coupling: Competition Between Oscillation Periods," Phys. Rev. B 50, 13058-13061 (1994).
21. R. Coehoorn, "Period of Oscillatory Exchange Interactions in Co/Cu and Fe/Cu Multilayer Systems," Phys. Rev. B 44, 9331-9337 (1991).
22. P. Bruno and C. Chappert, "Oscillatory Coupling Between Ferromagnetic Layers Separated by a Nonmagnetic Metal Spacer," Phys. Rev. Lett. 67, 1602-1605, 2592 (1991); P. Bruno and C. Chappert, "Ruderman-Kittel Theory of Oscillatory Interlayer Exchange Coupling," Phys. Rev. B 46, 261-270 (1992).
23. P. Bruno and C. Chappert, "Oscillatory Coupling Between Ferromagnetic Layers Separated by a Nonmagnetic Metal Spacer," Phys. Rev. Lett. 67, 1602-1605, 2592 (1991); P. Bruno and C. Chappert, "Ruderman-Kittel Theory of Oscillatory Interlayer Exchange Coupling," Phys. Rev. B 46, 261-270 (1992).
24. M. T. Johnson, S. T. Purcell, N. W. E. McGee, R. Coehoorn, J. aan de Stegge, and W. Hoving, "Structural Dependence of the Oscillatory Exchange Interaction Across Cu Layers," Phys. Rev. Lett. 68, 2688-2691 (1992).
25. P. J. H. Bloemen, M. T. Johnson, M. T. H. van de Vorst, R. Coehoorn, J. J. de Vries, R. Jungblut, J. aan de Stegge, A. Reinders, and W. J. M. de Jonge, "Magnetic Layer Thickness Dependence of the Interlayer Exchange Coupling in (001) Co/Cu/Co," Phys. Rev. Lett. 72, 764-767 (1994).
26. J. J. de Vries, A. A. P. Schudelaro, R. Jungblut, P. J. H. Bloemen, A. Reinders, J. Kohlhepp, R. Coehoorn, and W. J. M. de Jonge, "Oscillatory Interlayer Exchange Coupling with the Cu Cap Layer Thickness in Co/Cu/Co/Cu(100)," Phys. Rev. Lett. 75, 4306-4309 (1995).
27. J. Barnas, "Coupling Between Two Ferromagnetic Films Through a Non-Magnetic Metallic Layer," J. Magn. Magn Mater. 111, L215-219 (1992).
28. P. Bruno, "Oscillations of Interlayer Exchange Coupling vs. Ferromagnetic-Layers," Europhys. Lett. 23, 615-620 (1993).
29. P. Lang, L. Nordström, K. Wildberger, R. Zeller, and P. H. Dederichs, "Ab Initio Calculations of Interaction Energies of Magnetic Layers in Noble Metals: Co/Cu(100)," Phys. Rev. B 53, 9092-9107 (1996).
30. J. Mathon, M. Villeret, M. B. Muniz, J. d'Albuquerque e Castro, and D. M. Edwards, "Quantum Well Theory of the Exchange Coupling in Co/Cu/Co(001)," Phys. Rev. Lett. 74, 3696-3699 (1995).
31. B. Lee and Y.-Ch. Chang, "Effects of Realistic Band Structures on the Interlayer Coupling Strengths in Magnetic Multilayers," Phys. Rev. B 52, 3499-3510 (1995).
32. R. Coehoorn, A. De Veirman, and J. P. W. B. Duchateau, "The Phase of the Oscillatory Exchange Coupling in Coherent fcc (Fe-Co-Ni)/Cu(001) Multilayers," J. Magn. Magn. Mater. 121, 266-269 (1993).
33. M. T. Johnson, M. T. H. van de Vorst, P. J. H. Bloemen, R. Coehoorn, A. Reinders, J. aan de Stegge, and R. Jungblut, "Phase Shifts in the Oscillatory Interlayer Exchange Coupling Across Cu Layers," Phys. Rev. Lett. 75, 4686-4689 (1995).
34. H. Matsuyama and K. Koike, "A Data Acquisition and Display System for Spin-Polarized Scanning Electron Microscopy (Spin SEM)," Rev. Sci. Instrum. 62, 970-981 (1991).
35. J. Unguris, R. J. Celotta, and D. T. Pierce, "Observation of Two Different Oscillation Periods in the Exchange Coupling of Fe/Cr/Fe(100)," Phys. Rev. Lett. 67, 140-143 (1991).
36. R. Allenspach, "Ultrathin Films: Magnetism on the Microscopic Scale," J. Magn. Magn. Mater. 129, 160-185 (1994).
37. R. Allenspach, A. Bischof, M. Stampanoni, D. Kerkmann, and D. Pescia, "Growing Thin Magnetic Films with a Mask: Distinguishing Between Magnetic and Instrumental Asymmetries," Appl. Phys. Lett. 60, 1908-1910 (1992).
38. C. H. Back, W. Weber, A. Bischof, D. Pescia, and R. Allenspach, "Probing Oscillatory Exchange Coupling with a Paramagnet," Phys. Rev. B 52, R13114-13117 (1995).
39. A. Cebollada, R. Miranda, C. M. Schneider, P. Schuster, and J. Kirschner, "Experimental Evidence of an Oscillatory Magnetic Coupling in Co/Cu/Co Epitaxial Layers," J. Magn. Magn. Mater. 102, 25-29 (1991).
40. Z. Q. Qiu, J. Pearson, and S. D. Bader, "Oscillatory Interlayer Magnetic Coupling of Wedged Co/Cu/Co Sandwiches Grown on Cu(100) by Molecular Beam Epitaxy," Phys. Rev. B 46, 8659-8662 (1992).
41. P. J. H. Bloemen, R. van Dalen, W. J. M. de Jonge, M. T. Johnson, and J. aan de Stegge, "Short Period Oscillation of the Interlayer Exchange Coupling in the Ferromagnetic Regime in Co/Cu/Co(100)," J. Appl. Phys. 73, 5972-5974 (1993).
42. J. Unguris, R. J. Celotta, and D. T. Pierce, "Oscillatory Magnetic Coupling in Fe/Ag/Fe(100) Sandwich Structures," J. Magn. Magn. Mater. 127, 205-213 (1993).
43. P. Bruno, "Physical Mechanism of Oscillatory Interlayer Exchange Coupling," J. Magn. Magn. Mater. 116, L13-17 (1992); P. Bruno, "Interlayer Exchange Coupling: A Unified Physical Picture," ibid. 121, 248-252 (1993).
44. P. Bruno, "Physical Mechanism of Oscillatory Interlayer Exchange Coupling," J. Magn. Magn. Mater. 116, L13-17 (1992); P. Bruno, "Interlayer Exchange Coupling: A Unified Physical Picture," ibid. 121, 248-252 (1993).
45. D. D. Chambliss, R. J. Wilson, and S. Chiang, "Nucleation and Growth of Ultrathin Fe and Au Films on Cu(100) Studied by Scanning Tunneling Microscopy," J. Vac. Sci. Technol. A 10, 1993-1998 (1992).
46. J. Fassbender, R. Allenspach, and U. Dürig, "Intermixing and Growth Kinetics of the First Co Monolayers on Cu(001)," Surf. Sci. 383, L742-L748 (1997).
47. M. G. Samant, J. Stöhr, S. S. P. Parkin, G. A. Held, B. D. Hermsmeier, F. Herman, M. van Schilfgaarde, L.-C. Duda, D. C. Mancini, N. Wassdahl, and R. Nakajima, "Induced Spin Polarization in Cu Spacer Layers in Co/Cu Multilayers," Phys. Rev. Lett. 72, 1112-1115 (1994).
48. See for example G. A. Mulhollan, R. L. Fink, J. L. Erskine, and G. K. Walters, "Local Spin Correlations in Ultrathin Fe/W(100) Films," Phys. Rev. B 43, 13645-13648 (1991); D. Kerkmann, D. Pescia, and R. Allenspach, "Two-Dimensional Magnet at Curie Temperature: Epitaxial Layers of Co on Cu(100)," Phys. Rev. Lett. 68, 686-689 (1992); M. Farle, K. Baberschke, U. Stetter, A. Aspelmeier, and F. Gerhardter, "Thickness-Dependent Curie Temperature of Gd(0001)/W(11) and Its Dependence on the Growth Conditions," Phys. Rev. B 47, 11571-11574 (1993); C. H. Back, C. Wüsch, D. Kerkmann, and D. Pescia, "Giant Magnetic Susceptibility in Fe and Co Epitaxial Films," Z. Phys. B 96, 1-3 (1994).
49. See for example G. A. Mulhollan, R. L. Fink, J. L. Erskine, and G. K. Walters, "Local Spin Correlations in Ultrathin Fe/W(100) Films," Phys. Rev. B 43, 13645-13648 (1991); D. Kerkmann, D. Pescia, and R. Allenspach, "Two-Dimensional Magnet at Curie Temperature: Epitaxial Layers of Co on Cu(100)," Phys. Rev. Lett. 68, 686-689 (1992); M. Farle, K. Baberschke, U. Stetter, A. Aspelmeier, and F. Gerhardter, "Thickness-Dependent Curie Temperature of Gd(0001)/W(11) and Its Dependence on the Growth Conditions," Phys. Rev. B 47, 11571-11574 (1993); C. H. Back, C. Wüsch, D. Kerkmann, and D. Pescia, "Giant Magnetic Susceptibility in Fe and Co Epitaxial Films," Z. Phys. B 96, 1-3 (1994).
50. See for example G. A. Mulhollan, R. L. Fink, J. L. Erskine, and G. K. Walters, "Local Spin Correlations in Ultrathin Fe/W(100) Films," Phys. Rev. B 43, 13645-13648 (1991); D. Kerkmann, D. Pescia, and R. Allenspach, "Two-Dimensional Magnet at Curie Temperature: Epitaxial Layers of Co on Cu(100)," Phys. Rev. Lett. 68, 686-689 (1992); M. Farle, K. Baberschke, U. Stetter, A. Aspelmeier, and F. Gerhardter, "Thickness-Dependent Curie Temperature of Gd(0001)/W(11) and Its Dependence on the Growth Conditions," Phys. Rev. B 47, 11571-11574 (1993); C. H. Back, C. Wüsch, D. Kerkmann, and D. Pescia, "Giant Magnetic Susceptibility in Fe and Co Epitaxial Films," Z. Phys. B 96, 1-3 (1994).
51. See for example G. A. Mulhollan, R. L. Fink, J. L. Erskine, and G. K. Walters, "Local Spin Correlations in Ultrathin Fe/W(100) Films," Phys. Rev. B 43, 13645-13648 (1991); D. Kerkmann, D. Pescia, and R. Allenspach, "Two-Dimensional Magnet at Curie Temperature: Epitaxial Layers of Co on Cu(100)," Phys. Rev. Lett. 68, 686-689 (1992); M. Farle, K. Baberschke, U. Stetter, A. Aspelmeier, and F. Gerhardter, "Thickness-Dependent Curie Temperature of Gd(0001)/W(11) and Its Dependence on the Growth Conditions," Phys. Rev. B 47, 11571-11574 (1993); C. H. Back, C. Wüsch, D. Kerkmann, and D. Pescia, "Giant Magnetic Susceptibility in Fe and Co Epitaxial Films," Z. Phys. B 96, 1-3 (1994).
52. E. J. Escorcia-Aparicio, R. K. Kawakami, and Z. Q. Qiu, "fcc Fe Films Grown on a Ferromagnetic fcc Co(100) Substrate," Phys. Rev. B 54, 4155-4158 (1996).
53. S. F. Alvarado, R. Feder, H. Hopster, F. Ciccacci, and H. Pleyer, "Simultaneous Probing of Exchange and SpinOrbit Interaction in Spin Polarized Low Energy Electron Diffraction from Magnetic Surfaces," Z. Phys. B 49, 129-132 (1982).
54. E. R. Moog, C. Liu, S. D. Bader, and J. Zak, "Thickness and Polarization Dependence of the Magnetooptic Signal from Ultrathin Ferromagnetic Films," Phys. Rev. B 39, 6949-6956 (1989).
55. K. Koike, T. Furukawa, G. P. Cameron, and Y. Murayama, "Intensity and Polarization Oscillation of Secondary Electrons Emitted from Au/Fe(110)," Phys. Rev. B 50, 4816-4818 (1994).
56. W. Weber, R. Allenspach, and A. Bischof, "Exchange Coupling Across Cu(100): A High-Precision Study," Europhys. Lett. 31, 491-496 (1995); ibid. 32, 379 (1995).
57. W. Weber, R. Allenspach, and A. Bischof, "Exchange Coupling Across Cu(100): A High-Precision Study," Europhys. Lett. 31, 491-496 (1995); ibid. 32, 379 (1995).
58. H. J. Elmers, T. Furubayashi, M. Albrecht, and U. Gradmann, "Analysis of Magnetic Anisotropies in Ultrathin Films by Magnetometry In Situ in UHV," J. Appl. Phys. 70, 5764-5768 (1991).
59. B. Heinrich, J. F. Cochran, A. S. Arrott, S. T. Purcell, K. B. Urquhart, J. R. Dutcher, and W. F. Egelhoff, Jr., "Development of Magnetic Anisotropies in Ultrathin Epitaxial Films of Fe(001) and Ni(001)," Appl. Phys. A 49, 473-490 (1989).
60. A. Berger, U. Linke, and H. P. Oepen, "Symmetry-Induced Uniaxial Anisotropy in Ultrathin Epitaxial Cobalt Films on Cu(1 1 13)," Phys. Rev. Lett. 68, 839-842 (1992).
61. P. Krams, B. Hillebrands, G. Güntherodt, and H. P. Oepen, "Magnetic Anisotropies of Ultrathin Co Films on Cu(1 1 13) Substrates," Phys. Rev. B 49, 3633-3636 (1994).
62. W. Weber, C. H. Back, A. Bischof, D. Pescia, and R. Allenspach, "Magnetic Switching in Cobalt Films by Adsorption of Copper," Nature 374, 788-790 (1995).
63. H. P. Oepen, C. M. Schneider, D. S. Chuang, C. A. Ballentine, and R. C. O'Handley, "Magnetic Anisotropy in Epitaxial fcc Co/Cu(1 1 13)," J. Appl. Phys. 73, 6186-6188 (1993).
64. P. Krams, F. Lauks, R. L. Stamps, B. Hillebrands, and G. Güntherodt, "Magnetic Anisotropies of Ultrathin Co(001) Films on Cu(001)," Phys. Rev. Lett. 69, 3674-3677 (1992).
65. R. Jungblut, M. T. Johnson, J. aan de Stegge, A. Reinders, and F. J. A. den Broeder, "Orientational and Structural Dependence of Magnetic Anisotropy of Cu/Ni/Cu Sandwiches: Misfit Interface Anisotropy," J. Appl. Phys. 75, 6424-6426 (1994).
66. J. Fassbender, C. Mathieu, B. Hillebrands, G. Güntherodt, R. Jungblut, and M. T. Johnson, "Identification of Magnetocrystalline and Magnetoelastic Anisotropy Contributions in Ultrathin Epitaxial Co(110) Films," J. Magn. Magn. Mater. 148, 156-157 (1995).
67. J. R. Childress, R. Kergoat, O. Durand, J.-M. George, P. Galtier, J. Miltat, and A. Schuhl, "Magnetic Properties and Domain Structure of Epitaxial (001)Fe/Pd Superlattices," J. Magn. Magn. Mater. 130, 13-22 (1994).
68. A. K. Schmid and J. Kirschner, "In Situ Observation of Epitaxial Growth of Co Thin Films on Cu(100)," Ultramicrosc. 42-44, 483-489 (1992).
69. J. Fassbender, U. May, B. Schirmer, R. M. Jungblut, B. Hillebrands, and G. Güntherodt, "Oscillatory Surface InPlane Lattice Spacing During Growth of Co and of Cu on a Cu(001) Single Crystal," Phys. Rev. Lett. 75, 4476-4479 (1995).
70. J. Cousty, R. Peix, and B. Perraillon, "Diffusion Superficielle sur le Cuivre: Influence des Marches," Surf. Sci. 107, 586-604 (1981).
71. W. Weber, A. Bischof, R. Allenspach, C. H. Back, J. Fassbender, U. May, B. Schirmer, R. M. Jungblut, G. Güntherodt, and B. Hillebrands, "Structural Relaxation and Magnetic Anisotropy in Co/Cu(001) Films," Phys. Rev. B 54, 4075-4079 (1996).
72. R. Allenspach and W. Weber, "Magnetoresistive Sensor," PCT Patent Application WO 96/16339, 1996.
73. S. K. J. Lenczowski, M. A. M. Gijs, J. B. Giesbers, R. J. M. van de Veerdonk, and W. J. M. de Jonge, "Interpretation of the Giant Magnetoresistance Effect in Co/Cu(100) Multilayers with the Quantum Model of Giant Magnetoresistance," Phys. Rev. B 50, 9982-9988 (1994).
74. Chin-An Chang, "Magnetocrystalline Anisotropy of (100) Face-Centered Cubic Co Structures Deposited on Cu/Si(100)," Appl. Phys. Lett. 58, 1745-1747 (1991).
75. G. R. Harp and S. S. P. Parkin, "Seeded Epitaxy of Metals by Sputter Deposition," Appl. Phys. Lett. 65, 3063-3065 (1994).
76. P. Bruno, Y. Suzuki, and C. Chappert, "Magneto-Optical Kerr Effect in a Paramagnetic Overlayer on a Ferromagnetic Substrate: A Spin-Polarized Quantum Size Effect," Phys. Rev. B 53, 9214-9220 (1996).
77. M. E. Buckley, F. O. Schumann, and J. A. C. Bland, "Strong Changes in the Magnetic Properties of Ultrathin Co/Cu(001) Films Due to Submonolayer Quantities of a Nonmagnetic Overlayer," Phys. Rev. B 52, 6596-6605 (1995).
78. M. Cinal, D. M. Edwards, and J. Mathon, "Magnetocrystalline Anisotropy in Ferromagnetic Films," Phys. Rev. B 50, 3754-3760 (1994); "Magnetocrystalline Anisotropy in (110) fcc Cobalt Films," J. Magn. Magn. Mater. 140-144, 681-682 (1995).
79. M. Cinal, D. M. Edwards, and J. Mathon, "Magnetocrystalline Anisotropy in Ferromagnetic Films," Phys. Rev. B 50, 3754-3760 (1994); "Magnetocrystalline Anisotropy in (110) fcc Cobalt Films," J. Magn. Magn. Mater. 140-144, 681-682 (1995).
80. R. Allenspach, A. Bischof, and U. Dürig, "Cu Adsorption on Co Films: Edge Decoration Versus Intermixing," Surf. Sci. 381, L573-L580 (1997).
81. W. Weber, C. H. Back, U. Ramsperger, A. Vaterlaus, and R. Allenspach, "Submonolayers of Adsorbates on Stepped Co/Cu(100): Switching of the Easy Axis," Phys. Rev. B 52, R14400-14403 (1995).
82. S. Ould-Mahfoud, R. Mégy, N. Bardou, B. Bartenhan, P. Beauvillain, C. Chappert, J. Corno, B. Lecuyer, G. Sczigel, P. Veillet, and D. Weller, "In-Situ RHEED and Magneto-Optic Study of Ultrathin Cobalt Films on (111) Gold Substrate: Effect of a Metallic Overlayer," Mater. Res. Soc. Symp. Proc. 313, 251-256 (1993).
83. B. N. Engel, M. H. Wiedmann, R. A. van Leeuwen, and C. M. Falco, "Anomalous Magnetic Anisotropy in Ultrathin Transition Metals," Phys. Rev. B 48, 9894-9897 (1993)
84. D. Hartmann, W. Weber, D. A. Wesner, S. Popovic, and G. Güntherodt, "Spin-Polarized Photoemission at Interfaces of Noble Metals with Co and Fe," J. Magn. Magn. Mater. 121, 160-162 (1993).
85. Ch. Würsch, C. Stamm, S. Egger, D. Pescia, W. Baltensperger, and J. S. Helman, "Quantum Oscillations in a Confined Electron Gas," Nature 389, 937-939 (1997).