RF signal detector and energy harvester based on a spin-torque diode with perpendicular magnetic anisotropy
Source abstract
Abstract
We demonstrate theoretically that in a spintronic diode (SD), having a free magnetic layer with perpendicular magnetic anisotropy of the first and second order and no external bias magnetic field, the out-of-plane regime of magnetization precession can be excited by sufficiently large (exceeding a certain threshold) RF signals with the frequencies ≲250 MHz. We also show that such a device can operate as a broadband energy harvester capable of converting incident RF power into a DC power with a conversion efficiency of ∼5%. The developed analytical theory of the bias-free SD operation can be used for the optimization of high-efficiency RF detectors and energy harvesters based on SDs.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Energy Harvesting in Wireless Networks · Wireless Power Transfer Systems · Quantum and electron transport phenomena
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Radio Physics, Electronics and Computer Systems, Taras Shevchenko National University of Kyiv 1 , Kyiv 01601, Ukraine
Department of Physics, Oakland University 2 , Rochester, Michigan 48309, USA
U.S. Army CCDC GVSC 3 , Warren, Michigan 48397, USA
Funding
North Atlantic Treaty Organization · Division of Emerging Frontiers in Research and Innovation · Ministry of Education and Science of Ukraine · Multidisciplinary University Research Initiative · National Academy of Sciences of Ukraine
References (22)
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