Microwave photovoltage and photoresistance effects in ferromagnetic microstrips
By N. Mecking, Y. Gui, C.-M. Hu. 2007
147 citations recorded by the source corpus.
We investigate the dc electric response induced by ferromagnetic resonance in ferromagnetic Permalloy $({\mathrm{Ni}}_{80}{\mathrm{Fe}}_{20})$ microstrips. The resulting magnetization precession alters the angle of the magnetization with respect to both dc and rf current. Consequently the time averaged anisotropic magnetoresistance (AMR) changes (photoresistance). At the same time the time-dependent AMR oscillation rectifies a part of the rf current and induces a dc voltage (photovoltage). A phenomenological approach to magnetoresistance is used to describe the distinct characteristics of the photoresistance and photovoltage with a consistent formalism, which is found in excellent agreement with experiments performed on in-plane magnetized ferromagnetic microstrips. Application of the microwave photovoltage effect for rf magnetic field sensing is discussed.
Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/795dc45ef81215ed50d7b8bffad975973e79584d
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In Atomic and Molecular Physics, and Optics
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Citations in the corpus
- Electrical Detection of Magnetization Dynamics via Spin Rectification Effects (2016, methodology): “If in addition there is no applied dc current then J = jtẑ′ = Re(jz′e)ẑ (a dc current will lead to a photoresistance [24] which we do not discuss here).”
- Magnetism, symmetry and spin transport in van der Waals layered systems (2021, unknown): “(7) can be further sliced into two contributions, those resulting from scattering mechanisms of electrons at the Fermi level (proportional to the conductivity), and those arising from a Fermi-sea contribution, which in principle can provide both dissipative and non-dissipative SOTs, and are…”
- Spin Hall Effects in Metals (2013, background): “Alternatively, the resistance change due to anisotropic magnetoresistance [173], [177] can be used for calibrating the precession cone angle [99], [109], which may be more appropriate in situations where the homo-”