By John C. Mallinson
ISBN-10: 0124666272
ISBN-13: 9780124666276
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''This publication is very beneficial for its discussions. together with his excellent feeling (or greater formulated: experience), John Mallinson continually reveals an outstanding stability among comparing or providing equations and discussing relationships, tools and schemes for various functions. furthermore, this booklet is particularly readable and not boring, and, for that reason, hugely recommmendable! READ-WRITE 96-27
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Extra resources for Magneto-Resistive and Spin Valve Heads. Fundamentals and Applications
Example text
The second part flows through a layer of electrically conductive, nonmagnetic material which is electrically insulated from the MRE. The arrangement is shown in Fig. 2. The current flowing in the MRE cannot provide a vertical bias field in the MRE itself. However, the current in the adjacent layer does cause a vertical bias field in the MRE. By the fight-hand rule discussed in Chapter 1, current flowing in the direction shown in Fig. 2 produces a down vertical bias field in the MRE. 6. _ Conductor m MR Element / Insulator Fig.
61, 21. , Speriosu, V. , Parkin, S. S. , Gurney, B. , Wilhoit, D. , and Mauri, D. (1991), "Giant Magnetoresistance in Soft Ferromagnetic Multilayers," Phys. Rev. B 43, 1. Hylton, T. , Coffey, K. , Parker, M. , and Howard, J. K. (1993), "Giant Magnetoresistance at Low Fields in Discontinuous NiFe-Ag Multilayer Thin Films," Science, p. 261. White, R. L. (1992), "Giant Magnetoresistance ~ A Primer," IEEE Trans. MAG-28, 5. CHAPTER 6 Vertical Biasing Techniques In the design of both AMRHs and GMR spin valves it is usually necessary to provide both vertical and horizontal magnetic bias fields.
By the fight-hand rule discussed in Chapter 1, current flowing in the direction shown in Fig. 2 produces a down vertical bias field in the MRE. 6. _ Conductor m MR Element / Insulator Fig. 2. The current bias arrangement. The magnitude of the current is determined by the voltage applied across the MRH and the resistance of the current conductor film. 2nlJD Oe. An estimate can be made of the MRE bias angle using Eq. 4). An advantage of current bias is that it requires only minimal materials technology to implement.
Magneto-Resistive and Spin Valve Heads. Fundamentals and Applications by John C. Mallinson
by John
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