INFLUENCE OF SUBSTRATE SURFACE RECONSTRUCTION ON THE GROWTH AND MAGNETIC PROPERTIES OF FE ON GAAS(001)
作者： E. M. Kneedler , B. T. Jonker , P. M. Thibado , R. J. Wagner , B. V. Shanabrook
关键词:
摘要: Abstract : We have studied the magnetic and structural properties of epitaxial bcc Fe(001) films grown at 175 C on molecular-beam epitaxy-prepared GaAs(001)-2*4 -c(4*4) reconstructed surfaces, with film thicknesses ranging up to ~30 ML (~43 ). present measurements thickness-dependent evolution Fe as determined by in situ magneto-optic Kerr effect. find that growth mode are similar for both 234 c(434) reconstructions, although initial adsorption sites island nucleation measured scanning tunneling microscopy clearly dominated substrate surface reconstruction. The onset room-temperature ferromagnetism occurs 6 GaAs reconstructions. At this coverage, Curie temperature (100 C) is significantly reduced from bulk alpha-Fe (770 C). anisotropy a uniaxial component such two (110) axes inequivalent all coverages studied. Shape does not appear play significant role.
harvard.edu
sci-hub.se 参考文章(15)
Berend T. Jonker, Interfacial contributions to magnetic thin film anisotropy arising from epitaxial growth processes in metal/semiconductor structures Epitaxial Growth Processes. ,vol. 2140, pp. 118- 130 ,(1994) , 10.1117/12.175783
G. A. Prinz, J. J. Krebs, Molecular beam epitaxial growth of single‐crystal Fe films on GaAs Applied Physics Letters. ,vol. 39, pp. 397- 399 ,(1981) , 10.1063/1.92750
J. R. Waldrop, R. W. Grant, Interface chemistry of metal‐GaAs Schottky‐barrier contacts Applied Physics Letters. ,vol. 34, pp. 630- 632 ,(1979) , 10.1063/1.90642
J. J. Krebs, B. T. Jonker, G. A. Prinz, Properties of Fe single‐crystal films grown on (100)GaAs by molecular‐beam epitaxy Journal of Applied Physics. ,vol. 61, pp. 2596- 2599 ,(1987) , 10.1063/1.337886
E Kneedler, PM Thibado, BT Jonker, BR Bennett, BV Shanabrook, RJ Wagner, LJ Whitman, Epitaxial growth, structure, and composition of Fe films on GaAs(001)-2×4 Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures. ,vol. 14, pp. 3193- 3198 ,(1996) , 10.1116/1.588806
P. M. Thibado, E. Kneedler, B. T. Jonker, B. R. Bennett, B. V. Shanabrook, L. J. Whitman, Nucleation and growth of Fe on GaAs(001)-(2×4) studied by scanning tunneling microscopy Physical Review B. ,vol. 53, ,(1996) , 10.1103/PHYSREVB.53.R10481
Junming Zhou, Qikun Xue, Hideo Chaya, Tomihiro Hashizume, Toshio Sakurai, Surface ordering of the molecular beam epitaxially grown GaAs(001)‐2×4‐As reconstruction Applied Physics Letters. ,vol. 64, pp. 583- 585 ,(1994) , 10.1063/1.111115
D. K. Biegelsen, R. D. Bringans, J. E. Northrup, L.-E. Swartz, Surface reconstructions of GaAs(100) observed by scanning tunneling microscopy. Physical Review B. ,vol. 41, pp. 5701- 5706 ,(1990) , 10.1103/PHYSREVB.41.5701
Z. Q. Qiu, J. Pearson, S. D. Bader, Magnetic phase transition of ultrathin Fe films on Ag(111). Physical Review Letters. ,vol. 67, pp. 1646- 1649 ,(1991) , 10.1103/PHYSREVLETT.67.1646
G. J. Mankey, S. Z. Wu, F. O. Schumann, F. Huang, M. T. Kief, R. F. Willis, Magnetic properties of pseudomorphic ferromagnetic alloy films on Cu(100) Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. ,vol. 13, pp. 1531- 1533 ,(1995) , 10.1116/1.579721