title: Impedance spectroscopy of a molecular memory cell with a redox-active component.
abstract: We report the frequency dependent impedance spectroscopy of an Al/Al2O3/ASA-15 monolayer/Ti/Al molecular memory cell. As a result of comparing the memory cell with a control device that does not contain ASA-15 molecules, we confirmed that its impedance properties were originated from the ASA-15 monolayer. By examining the Cole-Cole plot for the fabricated memory cell, we also found that the response of the memory cell can be explained in terms of an equivalent circuit model with a contact resistance R(s) in series with an impedance Z(ox) at the Al oxide layer and an impedance Z(LB) at the ASA-15 monolayer.
authors.affiliation: Department of Electronic Engineering, Kyungwon University, San 65, Bokjeong-dong, Sujeong-gu, Seongnam, Kyonggi-do 461-701, Korea.
authors.forename: Ja-Ryong
authors.initials: JR
authors.lastname: Koo
authors.forename: Kyung Min
authors.initials: KM
authors.lastname: Choi
authors.forename: Seek Jae
authors.initials: SJ
authors.lastname: Lee
authors.forename: Young Kwan
authors.initials: YK
authors.lastname: Kim
authors.forename: Sang Jik
authors.initials: SJ
authors.lastname: Kwon