An intelligent instrument for giant magnetoresistance sensor evaluation

A versatile and sensitive instrument has been developed that is capable of measuring the percentage change in resistance for giant magnetoresistance (GMR) thin films as a function of applied magnetic field, drive current or time. The system is designed to have high resolution and minimum noise throu...

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Bibliographic Details
Published inSensors and actuators. A. Physical. Vol. 81; no. 1; pp. 385 - 388
Main Authors Holliday, N.T., Hill, E.W.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Lausanne Elsevier B.V 01.04.2000
Elsevier Science
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Giant magnetoresistance
High resolution
Instrument
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Low noise
Magnetic components, instruments and techniques
Magnetic properties and materials
Magnetotransport phenomena, materials for magnetotransport
Physics
Time dependence
Instrument
Low noise
Time dependence
High resolution
Giant magnetoresistance
Magnetic sensors
Low noise circuit
Thin film devices
Instrumentation
Experimental study
Artificial intelligence
High-resolution methods
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Summary:A versatile and sensitive instrument has been developed that is capable of measuring the percentage change in resistance for giant magnetoresistance (GMR) thin films as a function of applied magnetic field, drive current or time. The system is designed to have high resolution and minimum noise through optimised design and choice of components. The resistance changes in a thin film are detected indirectly by the system using a four-point in-line probe or by direct measurement of patterned samples.
ISSN:0924-4247
1873-3069
DOI:10.1016/S0924-4247(99)00171-5