Thin Film Magnetoresistive Sensors (Google eBook)

Front Cover
CRC Press, Jun 8, 2001 - Science - 576 pages
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Thin Film Magnetoresistive Sensors presents a comprehensive review of thin film magnetoresistive (MR) sensors, including the theory of MR effects as well as the design, fabrication, properties, and applications of MR sensors. With over 1,000 references, the book fully reviews the theory, development, and use of these sensors. It provides essential information about the performance of various kinds of sensors, including permalloy magnetoresistors, spin valve sensors, multilayer sensors, colossal effect sensors, spin dependent tunneling sensors, and magnetoimpedance sensors.

Divided into three independent parts, the book first concentrates on the most widely used sensors-anisotropic magnetoresistive sensors (AMR). The second part deals with giant magnetoresistive (GMR) sensors, including those still in development. In the third section, the book describes the applications of MR sensors, especially in data storage systems, industrial measurements, and nondestructive material testing systems.
  

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Contents

AMR Sensors
1
112 The origin of anisotropic magnetoresistance in ferromagnetic metals
8
113 The theory of anisotropic magnetoresistance in ferromagnetic metals
12
114 Thin ferromagnetic film as the magnetic Held sensor
17
115 Applying the StonerWohlfart model for analysis of magnetoresistive effects
22
12 BIASING AND STABILIZING TECHNIQUES
27
122 The real thin film the multidomain structure and the dispersion of anisotropy
33
123 Sensors biased by the hard magnetic layer
45
225 Current perpendicular to plane CPP structures
241
226 Magnetic tunnel junction MTJ structures
247
227 Colossal magnetoresistance CMR thin film structures
251
228 Giant magnetoimpedance GMI structures
256
23 PREPARATION DESIGN AND PROPERTIES OF GMR SENSORS
260
232 Technological factors affecting the performances of GMR sensors
266
233 The shape effects in thin film GMR devices
276
234 Design and construction of GMR sensors
286

124 The sensors biased by the current conducting layer
52
125 Biasing by exchange coupled antiferromagnetic layer
58
126 The soft adjacent layers SAL biasing technique
63
127 Dual element sensors
70
128 AC biasing techniques
76
129 The reverse mode of biasing
81
13 DESIGN AND PERFORMANCES OF AMR SENSORS
83
132 The influence of the magnetization nonuniformity on the MR effect
89
133 Technological factors affecting the performances of AMR sensors
97
134 Design and construction of AMR sensors
115
135 The performances of AMR sensors
132
REFERENCES
146
GMR Sensors
165
212 Oscillatory exchange coupling in the magnetic multilayers
173
213 Other coupling effects in multilayer structures
185
214 Theoretical models of giant magnetoresistance
191
215 Ferromagnetic multilayers as magnetic field sensors
199
22 VARIOUS TYPES OF GMR STRUCTURES
209
222 Granular GMR structures
217
223 Spinvalve structures with asymmetric magnetic layers uncoupled structures
222
224 Spin valve structures with exchangebiased layer
229
REFERENCES
298
Applications of Magnetoresistive Sensors
325
312 Gradiometers magnetic anomaly detection
336
32 ELECTRICAL MEASUREMENTS
341
322 Electrical transducers switching and logic elements
347
33 MAGNETORESISTIVE ELEMENTS IN DATA STORAGE APPLICATIONS
353
332 Magnetic card readers
357
333 Magnetoresistive heads for tape and disk applications
361
334 Unshielded magnetoresistive reading heads
372
335 Shielded magnetoresistive heads
376
336 Yoketype magnetoresistive heads
382
34 TRANSDUCERS OF MECHANICAL VALUES
384
342 Transducers of angular position
391
343 Measurements of rotational speed
396
35 MATERIAL TESTING AND MAGNETIC FIELD IMAGING
400
352 Magnetic imaging systems
406
REFERENCES
417
List of Symbols
431
List of Abbreviations
433
Index
435
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Page 2 - I have already communicated to the Royal Society a description of experiments by which I found that iron, when subjected to magnetic force, acquires an increase of resistance to the conduction of electricity along, and a diminution of resistance to the conduction of electricity across, the lines of magnetization * . By experiments more recently made...
Page 12 - ... normals to reflection planes, and for cubic crystals the four threefold axes are the cube-body diagonals. 2.2. The Symmetry of Property Tensors The relation between the symmetry of a crystal and the symmetry of its macroscopic physical properties is furnished by Neumann's principle which states that any type of symmetry which is exhibited by the point group of the crystal is possessed by every physical property of the crystal. To investigate the effect of crystal symmetry on the components of...

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