Download Thin Film Magnetoresistive Sensors by S Tumanski PDF

By S Tumanski

A finished evaluate of skinny movie magnetoresistive (MR) sensors, together with the speculation of magnetoresistive results in addition to the layout, fabrication, homes and functions of MR sensors.

Show description

Read Online or Download Thin Film Magnetoresistive Sensors PDF

Similar electricity and magnetism books

Magnetic Reconnection: MHD Theory and Applications

Magnetic reconnection is on the middle of many dynamic phenomena within the universe, reminiscent of sun flares, geomagnetic substorms and tokamak disruptions. Written via global leaders at the topic, this quantity offers a finished evaluate of this basic strategy. insurance offers either a pedagogical account of the elemental conception and a wide-ranging overview of the actual phenomena created through reconnection--from laboratory machines, the Earth's magnetosphere, and the Sun's surroundings to flare stars and astrophysical accretion disks.

Electromagnetic Compatibility Pocket Guide: Key EMC Facts, Equations, and Data

Each electrical product designed and synthetic around the globe needs to meet electromagnetic compatibility (EMC) laws. when you are a operating engineer or technician, the Electromagnetic Compatibility Pocket consultant: Key EMC evidence, Equation and knowledge is your quickest and simplest route to the solutions you want to in attaining compliance on your designs.

Additional info for Thin Film Magnetoresistive Sensors

Sample text

Every time the magnetic field vector reaches its critical value the vector of magnetization jumps to the opposite direction. 22 Graphical method of determination the transfer characteristic ⌬Rx ϭ f(hx) for the external field inclined by the angle 45° to the anisotropy axis. PART 1 9/5/01 9:22 pm 26 Page 26 THIN FILM MAGNETORESISTIVE SENSORS The experiments confirm the results of graphical determination of the resistance by means of the Stoner and Wohlfarth model. 23 presents a comparison of theoretical and experimental investigations for varying component hy and fixed component hx.

Additionally the magnetic history should be taken into account (Corb 1988). Yan and Jurisch (1989) computed the closure domain patterns for some simplified conditions – starting from an assumed initial domain configuration. 37(a) shows the results of calculations of the domain pattern. 37 The magnetization distribution in small permalloy sensors: calculated by Yan and Jurisch 1989(a) and by Köhler et al 1993(b,c). PART 1 9/5/01 9:23 pm Page 37 AMR SENSORS 37 A micromagnetic simulation program to compute the magnetization patterns in small thin film elements has been proposed by Köhler (Köhler et al 1993).

Next the angles ␸ and ␽ can be determined. 35). 6. 20 presents the reverse situation – varying of the Hy component. When the magnetic field hy decreases from hy1 to hy2 there is a moment when hy reaches the critical value hyc. At this moment the direction of the magnetization suddenly changes. When the magnetic field again increases the change of resistance has another character – the full cycle of magnetization makes the hysteresis loop. 21). In this way “the magnetic history” of the thin film has been changed.

Download PDF sample

Rated 4.75 of 5 – based on 13 votes