Spintronic nano-scale harvester of broadband microwave energy

Bin Fang; Mario Carpentieri; Steven Louis; Vasyl Tiberkevich; Andrei Slavin; Ilya N. Krivorotov; Riccardo Tomasello; Anna Giordano; Hongwen Jiang; Jialin Cai; Yaming Fan; Zehong Zhang; Baoshun Zhang; Jordan A. Katine; Kang L. Wang; Pedram Khalili Amiri; Giovanni Finocchio; Zhongming Zeng

doi:10.1103/physrevapplied.11.014022

arXiv · 1801.00445

Spintronic nano-scale harvester of broadband microwave energy

Bin Fang·Mario Carpentieri·Steven Louis·Vasyl Tiberkevich·Andrei Slavin·Ilya N. Krivorotov·Riccardo Tomasello·Anna Giordano·Hongwen Jiang·Jialin Cai·Yaming Fan·Zehong Zhang·Baoshun Zhang·Jordan A. Katine·Kang L. Wang·Pedram Khalili Amiri·Giovanni Finocchio·Zhongming Zeng

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Abstract

The harvesting of ambient radio-frequency (RF) energy is an attractive and clean way to realize the idea of self-powered electronics. Here we present a design for a microwave energy harvester based on a nanoscale spintronic diode (NSD). This diode contains a magnetic tunnel junction with a canted magnetization of the free layer, and can convert RF energy over the frequency range from 100 MHz to 1.2 GHz into DC electric voltage. An attractive property of the developed NSD is the generation of an almost constant DC voltage in a wide range of frequencies of the external RF signals. We further show that the developed NSD provides sufficient DC voltage to power a low-power nanodevice - a black phosphorus photo-sensor. Our results demonstrate that the developed NSD could pave the way for using spintronic detectors as building blocks for self-powered nano-systems, such as implantable biomedical devices, wireless sensors, and portable electronics.

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Bin Fang, Mario Carpentieri, Steven Louis, Vasyl Tiberkevich, Andrei Slavin, Ilya N. Krivorotov, Riccardo Tomasello, Anna Giordano, Hongwen Jiang, Jialin Cai, Yaming Fan, Zehong Zhang, Baoshun Zhang, Jordan A. Katine, Kang L. Wang, Pedram Khalili Amiri, Giovanni Finocchio, Zhongming Zeng. 2018-01-01. Spintronic nano-scale harvester of broadband microwave energy. https://doi.org/10.1103/physrevapplied.11.014022

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