Electrical reversible switching of Phase change materials

Electrical reversible switching of Phase change materials

Presenter(s)

Osama Rana

Comments

11:40-12:00, Kennedy Union 311

Description

Phase change materials (PCMs) undergo a reversible solid-state transition between amorphous and crystalline states upon heating by applying electrical or optical pulses. While crystallization can be induced by heating on a hot plate, amorphization requires heating above the melting point followed by rapid quenching. This study presents the design and fabrication of a microdevice enabling reversible switching through electrical pulses. GST pixels are deposited on a thin film metal strip to facilitate phase transitions. Electrical current will pass through metal thin film strip ,which will heat pixel via joule heating. To optimize device performance, we conducted resistivity measurements to select a suitable heater material and determined the optimal heater thickness for efficient impedance matching between the electrical pulse source and the device.

Publication Date

4-23-2025

Project Designation

Graduate Research

Primary Advisor

Andrew M. Sarangan

Primary Advisor's Department

Electro-Optics and Photonics

Keywords

Stander Symposium, School of Engineering

Institutional Learning Goals

Scholarship; Scholarship; Scholarship

Electrical reversible switching of Phase change materials

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