Read Back Signals in Magnetic Recording - Research Group Fidler

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Bibliography [25] S. Kurz, O. Rain, S. Rjasanow, “The adaptive cross-approximation technique for the 3D boundary-element method”, IEEE Trans. Magn., vol. 38, no. 2, pp. 421-424, March 2002. [26] D. M. Mount, ANN Programming Manual, http://www.cs.umd.edu/~mount/ANN/, University of Maryland, 2005. [27] D. A. Lindholm, “Three-Dimensional Magnetostatic Fields from Point-Matched Integral Equations with Linearly Varying Scalar Sources”, IEEE Trans. Magn. , vol. 20, no. 5, pp. 2025-2032, September 1984. [28] S. Pissanetzky, “Comments on ‘Analytical Computation of Magnetic Vector Potential for Tetrahedral Conductors’”, IEEE Trans. Magn., vol. 29, no. 2, pp. 1282-1283, March 1993. [29] S. D. Cohen, A. C. Hindmarsh, “CVODE User Guide“, Lawrence Livermore National Laboratory report, UCRL-MA-118618, 1994. [30] S. D. Cohen, A. C. Hindmarsh, “CVODE, a stiff/nonstiff ODE solver in C”, Computers in Physics, vol. 10, no. 2, pp. 138-143, March/April 1996. [31] P. Speckmayer, Electron Microscopy and Micromagnetic Simulation of FePt and CoPt Nanoparticles, Diploma Thesis, Working Group Magnetic Materials and Micromagnetics, Vienna University of Technology, 2004. [32] W. H. Bean and C. P. Meiklejohn, “New Magnetic Anisotropy”, Phys. Rev., vol. 102, pp. 1413, 1956. [33] S. Tanoue, K. Tabuchi, “Magnetoresistance characteristics of NiFe/Cu/CoFe/IrMn spin valves”, J. Vac. Sci. Technol. B, vol. 19, no. 2, pp. 563-566, March 2001. [34] J. Nogués, C. Leighton, I. K. Schuller, “Correlation between antiferromagnetic interface coupling and exchange bias“, Phys. Rev. B, vol. 61, pp. 1315, 2000. [35] H. A. M. Van den Berg, W. Clemens, G. Gieres, G. Rupp, W. Schelter, M. Veith, “GMR sensor scheme with artificial antiferromagnetic subsystem”, IEEE Trans. Magn., vol. 32, no. 5, pp. 4624-4626, September 1996. [36] P. Bruno, “Theory of interlayer exchange coupling”, Phys. Rev. B, vol. 52, no. 1, pp. 411-439, July 1995. [37] A. T. McCallum, S. E. Russek, “Current density distribution in a spin valve determined through in sito conductance measurement”, Appl. Phys. Lett., vol. 84, no. 17, pp. 3340-3342, April 2004. 88
Bibliography [38] W. F. Brown Jr., Micromagnetics, Wiley, New York, 1963. [39] S. J. Slonczewski, “Current-driven excitation of magnetic multilayers”, J. Magn. Magn. Mater., vol. 159, no. 1-2, pp. L1-L7, June 1996. [40] R. L. Comstock, Introduction to Magnetism and Magnetic Recording, Wiley, New York, 1999. Parts of this work have been published: [41] G. Hrkac, T. Schrefl, M. Kirschner, F. Dorfbauer, D. Suess, O. Ertl, J. Fidler, “Three-dimenisonal micromagnetic finite element simulations including eddy currents“, J. Appl. Phys., vol. 97, no. 10, May 2005, in press. [42] G. Hrkac, T. Schrefl, O. Ertl, M. Kirschner, D. Suess, J. Fidler, “Influence of Eddy Currents on Magnetization Processes in Sub-Micron Permalloy Structures”, IEEE Trans. Magn., in press. [43] O. Ertl, T. Schrefl, D. Suess, M. E. Schabes, “Influence of the Gilbert damping constants on the flux rise time of write head fields“, J. Magn. Magn. Mater., vol. 290- 291, part 1, pp. 518-521, April 2005. [44] M. E. Schabes, T. Schrefl, D. Suess, O. Ertl, “Dynamic Micromagnetic Studies of Anisotropy Effects in Perpendicular Write Heads”, IEEE Trans. Magn., in press. [45] T. Schrefl, M. E. Schabes, D. Suess, O. Ertl, M. Kirschner, F. Dorfbauer, G. Hrkac, J. Fidler, “Partitioning of the Perpendicular Write Field into Head and SUL Contributions”, IEEE Trans. Magn., in press. 89
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DIPLOMARBEIT Read Back Signals in M
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Abstract This thesis concentrates o
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Contents 3.2.4 Signal of Written Bi
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Introduction 1 IntroductionEquation
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Introduction In 1955, before the RA
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2 BasicsEquation Section (Next) 2.1
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Basics curl H = 0 . (2.15) So H is
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Basics This is justified, because t
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Basics Here J ij represents the exc
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s Basics ∂J α ∂J =−γ J× He
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Basics for spin down electrons. An
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Basics Figure 2.4: Schematic model
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Basics channels in the parallel and
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Basics Nowadays there are again eff
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Analytical Calculations 3 Analytica
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Analytical Calculations developing
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Analytical Calculations t C 8 π =
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µ 0 Hsig [T] 0.030 0.025 0.020 0.0
Page 37 and 38: Analytical Calculations n n ⎛HH,
Page 39 and 40: z Analytical Calculations Figure 3.
Page 41 and 42: 4 Numerical MethodsEquation Numeric
Page 43 and 44: Numerical Methods ϕ ( x ) =δ . (4
Page 45 and 46: Numerical Methods current flowing o
Page 47 and 48: Numerical Methods ∫ ∫ ∫ si =
Page 49 and 50: Numerical Methods Figure 4.2: The l
Page 51 and 52: Numerical Methods j =−σgrad Φ.
Page 53 and 54: Numerical Methods within the volume
Page 55 and 56: Numerical Methods Integration of Am
Page 57 and 58: 4.5 Time integration Numerical Meth
Page 59 and 60: 5 Read Head DesignEquation 5.1 Bias
Page 61 and 62: Read Head Design The exchange bias
Page 63 and 64: Read Head Design free layer (see Fi
Page 65 and 66: FEM Simulations 6 FEM SimulationsEq
Page 67 and 68: FEM Simulations Magnetic Material J
Page 69 and 70: 6.2 Results FEM Simulations In the
Page 71 and 72: Output [V] 0.108 0.107 0.106 0.105
Page 73 and 74: FEM Simulations has a greater influ
Page 75 and 76: Output Voltage [V] 0.1074 0.1072 0.
Page 77 and 78: 7 OutlookEquation Section (Next) Ou
Page 79 and 80: Appendix A In case we have the func
Page 81 and 82: Appendix B Moreover the second inte
Page 83 and 84: List of Figures List of Figures Fig
Page 85 and 86: List of Figures Figure 6.1: The mag
Page 87: Bibliography [11] H. Katayama, M. H
Page 91: Lebenslauf Otmar Ertl Reinprechtsdo
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