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    Studies of deposition order anomaly of exchange coupling in bilayers and trilayers of NiFe and CoO 

    Ambrose, T.; Leifer, K.; Hemker, K. J.; Chien, C. L. (American Institute of Physics, 1997-04-15)
    The temperature dependence of the exchange field and coercivity and the effect of deposition order have been studied in a series of bilayer (NiFe/CoO and CoO/NiFe) and trilayer (NiFe/CoO/NiFe) films. A profound difference ...
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    Dynamics of a vortex domain wall in a magnetic nanostrip: application of the collective-coordinate approach 

    Clarke, D.J.; Tretiakov, O. A.; Chern, G.-W.; Bazaliy, Ya.B.; Tchernyshyov, O. (American Physical Society, 2008-10-01)
    The motion of a vortex domain wall in a ferromagnetic strip of submicron width under the influence of an external magnetic field exhibits three distinct dynamical regimes. In a viscous regime at low fields the wall moves ...
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    Effects of carrier mobility and morphology in organic semiconductor spin valves 

    Liu, Yaohua; Lee, Taegweo; Katz, Howard E.; Reich, Daniel H. (American Institute of Physics, 2009-05-01)
    We studied spin transport in four organic semiconductors (OSCs) with different electronic properties. Magnetoresistance (MR) effects were observed up to room temperature in junctions based on an electron-carrying OSC, ...
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    Longitudinal and perpendicular exchange bias in FeMn/(FeNi/FeMn)n multilayers 

    Sun, L.; Zhou, S.M.; Searson, P.C.; Chien, C.-L. (American Institute of Physics, 2003-05-15)
    Exchange bias in ferromagnetic (FM)/antiferromagnetic (AF) bilayers is usually investigated in the longitudinal configuration with the exchange coupling established in the film plane. In this work, we report on the ...
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    Dynamics of domain walls in magnetic nanostrips 

    Tretiakov, O. A.; Clarke, D.; Chern, Gai-Wei; Bazaliy, Ya.B.; Tchernyshyov, O. (American Physical Society, 2008-03-28)
    We express the dynamics of domain walls in ferromagnetic nanowires in terms of collective coordinates, generalizing Thiele[psila]s steady-state results. For weak external perturbations the dynamics is dominated by a few ...
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    Stripes in thin ferromagnetic films with out-of-plane anisotropy 

    Clarke, David; Tretiakov, O. A.; Tchernyshyov, O. (American Physical Society, 2007-05-01)
    We examine the T=0 phase diagram of a thin ferromagnetic film with a strong out-of-plane anisotropy (e.g., Co/Pt multilayers) in the vicinity of the reorientation phase transition. The phase diagram in the anisotropy-applied-field ...
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    Comparison of surface spin wave modes at Fe/MnF2 and Fe/Mn interfaces 

    Siu, I. L.; Islam, M. N.; Walker, J. C. (American Institute of Physics, 2000-11-01)
    We have studied the thermal demagnetization in semi-infinite ferromagnets in Fe/MnF2 and Fe/Mn bilayers using Mössbauer spectroscopy. We find that the hyperfine field at the Fe/MnF2 interface follows a quasilinear temperature ...
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    Magnetic properties of one-dimensional quasiperiodic Co/Pt multilayers 

    Zhu, L.Y.; Cheng, X.M.; Chien, C.-L. (American Institute of Physics, 2006-04-15)
    We have fabricated Fibonacci [Co/Pt] multilayers with two constituent Co/Pt bilayers, as well as periodic multilayers of the same Co/Pt bilayers, all of which exhibit perpendicular magnetic anisotropy. Magnetic properties ...
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    Exchange coupling between Cr and ferromagnetic thin films 

    Yang, F.Y.; Chien, C.-L. (American Institute of Physics, 2003-05-15)
    Exchange bias has been observed in Ni81Fe19/Cr bilayers. The exchange bias field for Cr thickness tCr larger than 62 Å increases with tCr and levels off at tCr=150 Å, whereas coercivity increases without saturation. The ...
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    Cell manipulation using magnetic nanowires 

    Hultgren, A.; Tanase, M.; Chen, C. S.; Meyer, G. J.; Reich, D.H. (American Institute of Physics, 2003-05-15)
    The use of magnetic nanowires is demonstrated as a method for the application of force to mammalian cells. Magnetic separations were carried out on populations of NIH-3T3 mouse fibroblast cells using ferromagnetic Ni wires ...
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    AuthorChien, C.-L. (7)Ambrose, T. (4)Tchernyshyov, O. (3)Tretiakov, O. A. (3)Bazaliy, Ya.B. (2)Cheng, X.M. (2)Cammarata, R.C. (1)Chen, C. S. (1)Chern, G.-W. (1)Chern, Gai-Wei (1)... View MoreSubject
    ferromagnetic materials (15)
    iron alloys (7)exchange interactions (electron) (6)nickel alloys (6)magnetic hysteresis (5)antiferromagnetic materials (4)cobalt compounds (4)magnetic multilayers (4)cobalt (3)exchange coupling (3)... View MoreDate Issued2000 - 2009 (11)1997 - 1999 (4)Has File(s)Yes (15)

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