title: Binary switching in a 'symmetric' potential landscape.
abstract: A binary switch is the basic building block for information processing. The potential energy profile of a bistable binary switch is a 'symmetric' double well. The traditional method of switching it from one state (one well) to the other is to tilt the profile towards the desired state. Here, we present a case, where no such tilting is necessary to switch successfully, even in the presence of thermal noise. This happens because of the built-in dynamics inside the switch itself. It differs from the general perception on binary switching that in a 'symmetric' potential landscape, the switching probability is 50% in the presence of thermal noise. Our results, considering the complete three-dimensional potential landscape, demonstrate intriguing phenomena on binary switching mechanism. With experimentally feasible parameters, we theoretically demonstrate such intriguing possibility in electric field induced magnetization switching of a shape-anisotropic single-domain magnetostrictive nanomagnet with two stable states at room-temperature.
authors.affiliation: Department of Electrical and Computer Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA.
authors.forename: Kuntal
authors.initials: K
authors.lastname: Roy
authors.forename: Supriyo
authors.initials: S
authors.lastname: Bandyopadhyay
authors.forename: Jayasimha
authors.initials: J
authors.lastname: Atulasimha