Asif Islam Khan


I am a PhD student (since Fall 2008) in Electrical Engineering at UC Berkeley working in the Laboratory for Emerging & Exploratory Devices (LEED) advised by Prof. Sayeef Salahuddin. I am also a member of the CONCEPT lab advised by Prof. Ramamoorthy Ramesh.

My current research focuses on Ferroelectricity & Nano-Ferroelectronics in both theory and experiments.

Recently, our work led to the first experimental proof-of-concept demonstration of ferroelectric negative capacitance in nanoscale heterostructures, a novel physical effect proposed in 2008 that can help to beat the “Boltzmann Limit” of 60 mV/dec subthreshold swing in nanoscale CMOS transistors. Check out our recent publication on negative capacitance here and a corresponding press release here. The paper has been the cover article of September 12 issue of Applied Physics Letters and one of the top 20 most downloaded articles in September 2011.

I have recently been awarded the Silver prize in the 5th TSMC Outstanding Student Research Award. The official YouTube clip of my presentation and award ceremony is available here.

Before Berkeley, I received my BS in Electrical & Electronic Engineering from Bangladesh University of Engineering & Technology in 2007.

Our Ferroelectric Negative Capacitance Work on the News:

UC Berkeley NewsCenter: "Ferroelectrics could pave way for ultra-low power computing." By Sarah Yang, Media Relations | September 12, 2011, Berkeley. : "New materials promise ultra-low-power computing." By D. Ngo | September 12, 2011.

Shown in left is an artistic rendition of an experimental stack made with a layer of lead zirconate titanate (Pb(Zr0.2Ti0.8)O3), a ferroelectric material. UC Berkeley researchers showed that this configuration could amplify the charge in the layer of strontium titanate (SrTiO3), an electrical insulator, for a given voltage, a phenomenon known as negative capacitance. (Image credit: Asif Khan)

Asif I. Khan
550 Sutardja Dai Hall
TSMC Collaboratory, Desk #95
Dept of Electrical Engineering and Computer Sciences
University of California
Berkeley, CA-94720
Lab address:
100 Hearst Memorial Mining Building
Hearst Avenue, Berkeley, CA-94720
Lab Phone: (510)643-8202
Email: my first name @EECS.berkeley.EDU

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