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
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.
CNET.com : "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
100 Hearst Memorial Mining Building
Hearst Avenue, Berkeley, CA-94720
Lab Phone: (510)643-8202
Email: my first name @EECS.berkeley.EDU