RF signal detector and energy harvester based on a spin-torque diode with perpendicular magnetic anisotropy
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 01, 2021
- Source ID
- 10.1063/5.0042390
Entities
People
- Andrei Slavin
- Elena Bankowski
- Oleksandr Prokopenko
- P. Yu. Artemchuk
- Thomas Meitzler
- V. S. Tyberkevych
Organizations
- Ministry of Education and Science of Ukraine
- NATO
- National Academy of Sciences of Ukraine
- Oakland University
- Office of Emerging Frontiers and Multidisciplinary Activities
- Taras Shevchenko National University of Kyiv
- United States Army