Magnetic field sensor based on a low-frequency-tail spintronic diode

Spin-torque diode have shown great potentials and performance in many applicative fields, from microwave detectors to energy harvesters. In this work, we use micromagnetic simulations to study, at room temperature, a state-of-the-art non-resonant low-frequency-tail spin-torque diode in terms of dc o...

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Bibliographic Details
Published inInternational journal of applied electromagnetics and mechanics Vol. 73; no. 1; pp. 25 - 33
Main Authors Cutugno, Francesco, Mazza, Luciano, Azzerboni, Bruno, Meo, Andrea
Format Journal Article
LanguageEnglish
Published London, England SAGE Publications 20.09.2023
Sage Publications Ltd
Subjects
Electric potential
Energy harvesting
Magnetic fields
Room temperature
Torque
Voltage
spin-torque diode
Magnetic tunnel junction
magnetic field sensor
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Summary:Spin-torque diode have shown great potentials and performance in many applicative fields, from microwave detectors to energy harvesters. In this work, we use micromagnetic simulations to study, at room temperature, a state-of-the-art non-resonant low-frequency-tail spin-torque diode in terms of dc output voltage as a function of the amplitude of an in-plane external field applied along different directions. We find that there exists a threshold value of the injected ac current that promotes a linear behavior of the output voltage of field down to the pT range, and we suggest exploiting such a behavior for the design of a magnetic field sensor.
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ISSN:1383-5416
1875-8800
DOI:10.3233/JAE-220296