title: Adaptive microwave impedance memory effect in a ferromagnetic insulator.
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.
authors.affiliation: Department of Physics and Basic Science Institute for Cell Damage Control, Sogang University, Seoul 121-742, Korea.
authors.forename: Hanju
authors.initials: H
authors.lastname: Lee
authors.affiliation: Department of Physics, Sam Houston State University, Huntsville, Texas 77341, USA.
authors.forename: Barry
authors.initials: B
authors.lastname: Friedman
authors.affiliation: Department of Physics and Basic Science Institute for Cell Damage Control, Sogang University, Seoul 121-742, Korea.
authors.forename: Kiejin
authors.initials: K
authors.lastname: Lee