Hybrid spintronic structures with magnetic oxides and Heusler alloys

IEEE Transactions on Magnetics

Volumn 44, Issue 11 PART 1, 2008, Pages 2959-2965

  Xu, Y B ^a   Hassan, S S A ^a   Wong, P K J ^a   Wu, J ^a   Claydon, J S ^a   Lu, Y X ^a   Damsgaard, C D ^b   Hansen, J B ^b   Jacobsen, C S ^b   Zhai, Y ^c   Van Der Laan, G ^d   Feidenhans, R ^e   Holmes, S N ^f  

^a UNIVERSITY OF YORK   (United Kingdom)

^b TECHNICAL UNIVERSITY OF DENMARK   (Denmark)

^c SOUTHEAST UNIVERSITY   (China)

^d Diamond Laboratory   (United Kingdom)

^e UNIVERSITY OF COPENHAGEN   (Denmark)

^f TOSHIBA CORPORATION   (Japan)

Author keywords

Gallium arsenide (GaAs); Heusler alloys; Magnetic oxides; Magnetite; Molecular beam epitaxy; Spintronics; Ultra thin films

Indexed keywords

EID: 70350609910     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2008.2002188     Document Type: Article

References (39)

1. Y. B. Xu and S. M. Thompson, Spintronic Materials and Technology. New York: Taylor & Francis, 2006.
2. H. Ohno, A. Shen, F. Matsukura, A. Oiwa, A. Endo, S. Katsumoto, and Y. Iye, "(Ga, Mn)As: A new diluted magnetic semiconductor based on GaAs," Appl. Phys. Lett., vol. 69, no. 3, pp. 363-365, 1996.
3. K. W. Edmonds, K. Y. Wang, R. P. Campion, A. C. Neumann, N. R. S. Farley, B. L. Gallagher, and C. T. Foxon, "High-Curie-temperature Ga1-xMnxAs obtained by resistance-monitored annealing," Appl. Phys. Lett., vol. 81, no. 26, pp. 4991-4993, 2002.
4. S. A. Chambers and R. F. C. Farrow, "New Possibilities for Ferromagnetic Semiconductors," MRS Bull., vol. 28, no. 10, pp. 729-734, 2003.
5. X. Jiang, R. Wang, R. M. Shelby, R. M. Macfarlane, S. R. Bank, J. S. Harris, and S. S. P. Parkin, "Highly spin-polarized room-temperature tunnel injector for semiconductor spintronics using MgO(100)," Phys. Rev. Lett., vol. 94, no. 5, p. 056601, 2005.
6. G. A. Prinz, G. T. Rado, and J. J. Krebs, "Magnetic properties of single-crystal {110} iron films grown on GaAs by molecular beam epitaxy," J. Appl. Phys., vol. 53, no. 3, pp. 2087-2092, 1982.
7. Y. B. Xu, E. T. M. Kernohan, D. J. Freeland, A. Ercole, M. Tselepi, and J. A. C. Bland, "Evolution of the ferromagnetic phase of ultrathin Fe films grown on GaAs(100)-4 × 6," Phys. Rev. B, vol. 58, no. 2, pp. 890-896, 1998.
8. M. Brockmann, M. Zolfl, S. Miethaner, and G. Bayreuther, "In-plane volume and interface magnetic anisotropies in epitaxial Fe films on GaAs(0 0 1)," J. Magn. Magn. Mater., vol. 198, pp. 384-386, 1999.
9. F. C. Voogt, T. T. M. Palstra, L. Niesen, O. C. Rogojanu, M. A. James, and T. Hibma, "Superparamagnetic behavior of structural domains in epitaxial ultrathin magnetite films," Phys. Rev. B, vol. 57, no. 14, pp. R8107-R8110, 1998.
10. D. T. Margulies, F. T. Parker, F. E. Spada, R. S. Goldman, J. Li, R. Sinclair, and A. E. Berkowitz, "Anomalous moment and anisotropy behavior in Fe3O4 films," Phys. Rev. B, vol. 53, no. 14, pp. 9175-9187, 1996.
11. C. Ruby, J. Fusy, and J.-M. R. Genin, "Preparation and characterisation of iron oxide films deposited on MgO(100)," Thin Solid Films, vol. 352, no. 1-2, pp. 22-28, 1999.
12. W. Weiss and M. Ritter, "Stranski-Krastanov growth for Metal oxide heteroepitaxy: Iron oxides on Pt(111)," Phys. Rev. B, vol. 59, no. 7, pp. 5201-5213, 1999.
13. R. A. de Groot, F. M. Mueller, P. G. van Engen, and K. H. J. Buschow, "New Class of Materials: Half-Metallic Ferromagnets," Phys. Rev. Lett., vol. 50, no. 25, pp. 2024-2027, 1983.
14. 4 on GaAs(100)," Phys. Rev. B, vol. 70, p. 233304, 2004.
15. W. Van Roy, G. Borghs, and J. De Boeck, "Epitaxial growth of the half-metallic ferromagnet NiMnSb on GaAs(001)," J. Crystal Growth, vol. 227-228, pp. 862-866, 2001.
16. E. Girgis, P. Bach, C. Ruster, C. Gould, G. Schmidt, and L. Molenkamp, "Giant magnetoresistance in an epitaxial NiMnSb/Cu/CoFe multilayer," Appl. Phys. Lett., vol. 86, no. 14, pp. 142503-1-3-, 2005.
17. J. Dong, L. Chen, J. Xie, T. Muller, D. Carr, C. Palmstrom, S. McKernan, Q. Pan, and R. James, "Epitaxial growth of ferromagnetic Ni2MnGa on GaAs(001) using NiGa interlayers," J. Appl. Phys., vol. 88, no. 12, pp. 7357-7359, 2000.
18. X. Dong, C. Adelmann, J. Xie, C. Palmstrom, X. Lou, J. Strand, P. Crowell, J.-P. Barnes, and A. Petford-Long, "Spin injection from the Heusler alloy Co2MnGe into Al0.1Ga0.9As/GaAs heterostructures," Appl. Phys. Lett., vol. 86, no. 10, pp. 102107-1-102107-3, 2005.
19. L. J. Singh, Z. H. Barber, Y.Miyoshi, W. R. Branford, and L. F. Cohen, "Structural and transport studies of stoichiometric and off-stoichiometric thin films of the full Heusler alloy Co2MnSi," J. Appl. Phys., vol. 95, no. 11, pp. 7231-7233, 2004.
20. L. J. Singh, Z. H. Barber, A. Kohn, A. K. Petford-Long, Y. Miyoshi, Y. Bugoslavsky, and L. F. Cohen, "Interface effects in highly oriented films of the Heusler alloy Co2MnSi on GaAs(001)," J. Appl. Phys., vol. 99, no. 1, p. 013904, 2006.
21. B. T. Thole, P. Carra, F. Sette, and G. van der Laan, "X-ray circular dichroism as a probe of orbital magnetization," Phys. Rev. Lett., vol. 68, no. 12, pp. 1943-1946, 1992.
22. C. T. Chen, Y. U. Idzerda, H.-J. Lin, N. V. Smith, G. Meigs, E. Chaban, G. H. Ho, E. Pellegrin, and F. Sette, "Experimental Confirmation of the X-Ray Magnetic Circular Dichroism Sum Rules for Iron and Cobalt," Phys. Rev. Lett., vol. 75, no. 1, pp. 152-155, 1995.
23. E. Beaurepaire, H. Bulou, F. Scheurer, and J.-P. Kappler, "Magnetism and Synchrotron Radiation, Mittelwihr, 1996," Les Ditions Phys. Les Ulis, 1997.
24. C. T. Chen, Y. U. Idzerda, H. J. Lin, N. V. Smith, G. Meigs, E. Chaban, G. H. Ho, E. Pellegrin, and F. Sette, "Experimental Confirmation of the X-Ray Magnetic Circular Dichroism Sum Rules for Iron and Cobalt," Phys. Rev. Lett., vol. 75, no. 1, pp. 152-155, 1995.
25. C. D. Damsgaard, "Spin injection from epitaxial heusler alloy thin films into InGaAs/GaAs quantum wells," Ph.D. dissertation, Tech. Univ. Denmark, Lyngby, Denmark, 2006.
26. S. C. Erwin, S.-H. Lee, and M. Scheffler, "Surface physics low-dimensional systems, and related topics-First-principles study of nucleation, growth, and interface structure of Fe/GaAs (10 pages)," Phys. Rev. B 65, vol. 205, p. 422, 2002.
27. S. Mirbt, B. Sanyal, C. Isheden, and B. Johansson, "Surface physics, low-dimensional systems, and related topics-First-principles calculations of Fe on GaAs(100) (9 pages)," Phys. Rev. B 67, vol. 155, p. 421, 2003.
28. P. J. Webster, "Magnetic and chemical order in heusler alloys containing cobalt and manganese," J. Phys. Chem. Solids, vol. 32, pp. 1221-1231, 1971.
29. M. C. Hickey, C. D. Damsgaard, I. Farrer, S. N. Holmes, A. Husmann, J. B. Hansen, C. S. Jacobsen, D. A. Ritchie, R. F. Lee, G. A. C. Jones, and M. Pepper, "Spin injection between epitaxial Co2.4Mn1.6Ga and an InGaAs quantum well," Appl. Phys. Lett., vol. 86, no. 25, p. 252106, 2005.
30. Y. Dong, C. Adelman, J. Q. Xie, C. J. Palmstrom, X. Lou, J. Strand, P. A. Cowell, J. P. Barnes, and A. K. Petford-Long, "Spin injection from the Heusler alloy Co2MnGe into Al0.1Ga0.9 As/GaAs heterostructures," Appl. Phys. Lett., vol. 86, no. 10, p. 102107, 2005.
31. M. C. Hickey, S. N. Holmes, I. Farrer, D. A. Ritchie, M. Pepper, C. D. Damsgaard, C. S. Jacobsen, and J. B. Hansen, Appl. Phys. Lett., 2007, Submitted to.
32. W. Hiebert, A. Stankiewicz, and M. R. Freeman, "Activation of shallow boron acceptor in C/B coimplanted silicon carbide: A theoretical study," Phys. Rev. Lett., vol. 79, no. 6, pp. 1134-1137, 1997.
33. J. Wu, N. D. Hughes, J. R. Moore, and R. J. Hicken, "Excitation and damping of spin excitations in ferromagnetic thin films," J. Magn. Magn. Mater., vol. 241, no. 1, pp. 96-109, 2002.
34. C. Bunce, J. Wu, R. Chantrell, Y. X. Lu, and Y. B. Xu, "Picosecond magnetization dynamics of single-crystal Fe3O4 thin films," IEEE Trans. Magn., 2008, submitted for publication.
35. W. Eerenstein, T. T. M. Palstra, S. S. Saxena, and T. Hibma, "Spinpolarized transport across sharp antiferromagnetic boundaries," Phys. Rev. Lett., vol. 88, no. 10, p. 247204, 2002.
36. S. M. Watts, C. Boothman, S. van Dijken, and J. M. D. Coey, "Magnetite Schottky barriers on GaAs substrates," Appl. Phys. Lett., vol. 86, no. 21, p. 212108, 2005.
37. J. G. Simmons, "Generalized formula for the electric tunnel effect between similar electrodes separated by a thin insulating film," J. Appl. Phys., vol. 34, no. 6, pp. 1793-1803, 1963.
38. T. Kiyomura, Y. Maruo, and M. Gomi, "Electrical properties of MgO insulating layers in spin-dependent tunneling junctions using Fe3O4," J. Appl. Phys., vol. 88, no. 8, pp. 4768-4772, 2000.
39. S. Mitani, T. Moriyama, and K. Takanashi, "Fe/MgO/FeCo(100) epitaxial magnetic tunnel junctions prepared by using in situ plasma oxidation," J. Appl. Phys., vol. 93, no. 10, pp. 8041-8043, 2003.