Thin magnetic films

Hauser, H.; Chabicovsky, R.; Riedling, K.

doi:10.1016/b978-012512908-4/50073-4

Cited by 4 publications

(2 citation statements)

References 215 publications

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“…Thus, when the ferromagnetic layers are magnetized in parallel, the resistance is at a minimum value, R P -while at antiparallel orientation, the resistance is at a maximum value. The electrical resistance dependency between the angle and direction of the electric current and the magnetization in the magnetic layers can be expressed by [26][27][28][29]:…”

Section: Principle Of Operation-gmr Effectmentioning

confidence: 99%

Designing a Spintronic Based Magnetoresistive Bridge Sensor for Current Measurement and Low Field Sensing

et al. 2022

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An exchanged-biased anisotropic magnetoresistance bridge sensor for low currents measurement is designed and implemented. The sensor has a simple construction (single mask) and is based on results from micromagnetic simulations. For increasing the sensitivity of the sensor, the magnetic field generated by the measurement current passing through the printed circuit board trace is determined through an analytical method and, for comparative analysis, finite elements method simulations are used. The sensor performance is experimentally tested with a demonstrator chip. Four case studies are considered in the analytical method: neglecting the thickness of the trace, dividing the thickness of the trace in several layers, and assuming a finite or very long conductive trace. Additionally, the influence of several adjacent traces in the sensor area is evaluated. The study shows that the analytical design method can be used for optimizing the geometric selectivity of a non-contacting magnetoresistive bridge sensor setup in single trace, differential, and multi-trace (planar coil) configurations. Further, the results can be applied for developing highly performant magnetoresistance sensors and optimizations for low field detection, small dimensions, and low costs.

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Section: Principle Of Operation-gmr Effectmentioning

confidence: 99%

Designing a Spintronic Based Magnetoresistive Bridge Sensor for Current Measurement and Low Field Sensing

et al. 2022

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“…AMR sensors are suitable for the geomagnetic field sensing range, and are standard off-the-shelf devices for medium-accuracy electronic compasses. A good introduction was given by Hauser (2000). Typically, AMR sensors are made of permalloy thin film deposited onto a silicon substrate and patterned to form a Wheatstone resistor bridge (Caruso, 1998).…”

Section: Magnetic Sensorsmentioning

confidence: 99%

Magnetic Sensors for Navigation Applications: An Overview

Wang

2013

J. Navigation

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This paper reviews currently existing electronic magnetic sensor technologies for navigation applications. Magnetic compasses have been used in navigation for centuries. The Earth's geomagnetic field is considered to provide accurate, reliable and economically available information for orientation. Meanwhile, modern magnetometers and compass calibration technologies have allowed the electronic compass to become a crucial navigation tool, even in times of modern satellite navigation using Global Navigation Satellite Systems (GNSS). Magnetic sensor technologies, error modelling and compensating approaches have been reviewed in this paper. Current trends and the outlook for future development of the electronic compass are analysed.

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