Magneto-resistive and spin valve heads

John C Mallinson

184 pages, parution le 18/10/2001 (2^eme édition)

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Résumé

The second edition of Magneto-Resistive and Spin Valve Heads: Fundamentals and Applications brings the book up to date, including much new material that was virtually unknown at the time of the first edition.

The book begins with chapters covering the basics of magnetism, magnetic materials, and the writing and inductive reading processes, as well as the anisotropic and giant magneto-resistive effects. The following chapters cover methods used to produce the necessary magnetic biasing fields, the behavior of shielded single-element magneto-resistive heads, and giant magneto-resistive spin valves. The last few chapters deal with the design and performance of anisotropic and giant magneto-resistive heads (AMRHs and GMRHs, respectively) and consider the likely future of colossal magneto-resistive and electron spin tunneling heads. Almost all the AMRH material found in the first edition has been retained, but it has been extensively revised and edited to make it relevant to the present-day applications of AMRHs in high-density digital tape recording. Likely designs of giant magneto-resistive spin valves for operation at 100 gigabits/in.2 in hard disk drives are discussed. An appendix provides a listing of the defi ning equations and a table of conversion factors for cgs-emu and MKS-SI magnetic units.

The material in the book is presented in essentially a nonmathematical manner. The lack of mathematics should not lead the reader to suppose that this is an elementary exposition. Indeed, the aim is to lead the reader in a straightforward fashion to a high level of scientific understanding of magneto-resistive materials and heads, which are now used in every hard disk drive, as well as in digital tape drives for both computer and consumer applications.

The book is intended as a basic reference for electrical engineering students and individuals working in the recording and information storage industries.

Key features:

AMRM designs for 10 gigabit/in.2 tape recorders
GMRH spin valves for 100 gigabit/in.2 hard disks
Future prospects in colossal and spin tunneling magneto-resistive heads
Self-consistent treatment from basic magnetism to the latest spin valve designs

Contents

B,H, and M Fields
The Writing Process
The Reading Process
The Anisotropic Magneto-Resistive Effect
The Ciant Magneto-Resistive Effect
Vertical Biasing Techniques
Horizontal Biasing Techniques
Hunt's Unshielded Horizontal and Anisotropic
Magneto-Resistive Heads
Single-Element Shielded Vertical Magneto-Resistive Heads
Simple Spin Valve Giant Magneto-Resistive Heads
Enhanced Spin Valves
Synthetic Antiferro and Ferrimagnets
Antiferromagnet Upsets
Flux -Guide and Yoke-Type Magneto-Resistive Heads
Double-Element Magneto-Resistive Heads
Comparaison of Shielded Magneto-Resistive Head and Introductive Head Outputs
Simplified Design of a Shielded Anisotropic Magneto-Resistive Head
Simplified Design of a Shielded Giant Magneto-Resistive Head
Read Amplifiers and Signal-to-Noise Ratios
Colossal Magneto-Resistance and Electron Spin Tunneling Heads
Electrostatic Discharge Phenomena
Cgs-emu and MKS-SI (Rationalized ) Units
Recommanded Bibliography ou Magnetic Recording
Index

Caractéristiques techniques

	PAPIER
Éditeur(s)	Academic Press
Auteur(s)	John C Mallinson
Parution	18/10/2001
Édition	2^eme édition
Nb. de pages	184
Format	15,7 x 23,5
Couverture	Relié
Poids	480g
Intérieur	Noir et Blanc
EAN13	9780124666276
ISBN13	978-0-12-466627-6