Adaptive microwave impedance memory effect in a ferromagnetic insulator

Hanju Lee, Barry Friedman and Kiejin Lee ()
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Hanju Lee: Sogang University
Barry Friedman: Sam Houston State University
Kiejin Lee: Sogang University

Nature Communications, 2016, vol. 7, issue 1, 1-13

Abstract: Abstract Adaptive electronics, which are often referred to as memristive systems as they often rely on a memristor (memory resistor), are an emerging technology inspired by adaptive biological systems. Dissipative systems may provide a proper platform to implement an adaptive system due to its inherent adaptive property that parameters describing the system are optimized to maximize the entropy production for a given environment. Here, we report that a non-volatile and reversible adaptive microwave impedance memory device can be realized through the adaptive property of the dissipative structure of the driven ferromagnetic system. Like the memristive device, the microwave impedance of the device is modulated as a function of excitation microwave passing through the device. This kind of new device may not only helpful to implement adaptive information processing technologies, but also may be useful to investigate and understand the underlying mechanism of spontaneous formation of complex and ordered structures.

Date: 2016
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DOI: 10.1038/ncomms13737

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