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Impedance Spectroscopy of Resistance Switching in a Pt/NiO/Pt Capacitor
나상철,Min Chul Chun,김재준,손정욱,Sunkak Jo,김현진,강보수 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.12
A unipolar resistance switching (URS) Pt/NiO/Pt thin film structure was successfully depositedby sputtering. Each state was analyzed by using impedance spectroscopy. The equivalent circuitof the pristine state consists of resistor-capacitor parallel circuit. The low-resistance state couldbe described by using a single resistor. The high-resistance state comprised parallelly-connectedresistor and constant-phase element, plus a serial inductor. Our results are in good agreement witha model for the formation/rupture of conducting filaments in the URS phenomenon.