MSE Seminar: “Factors That Affect Phase Stability and Performance of Hafnia for Memory Applications”

Date/Time
Date(s) - 10/15/2024
3:00 pm - 4:00 pm

Location
Rhines 125

Categories


Abstract

The proliferation of information technologies is leading to an energy crisis. In response, new devices, algorithms, and materials are required to decrease humanity’s demand for energy in the computing sector.

One important space is in the development of non-volatile, low-energy memories. Ferroelectric hafnium oxide-based materials hold promise on this front owing to their chemical and processing compatibility with conventional semiconductors. However, the phase responsible for ferroelectricity does not exist on any phase diagram and requires the presence of one or more stabilizing mechanisms.

This presentation will highlight the Ihlefeld Research Group’s efforts to understand the mechanisms that stabilize the ferroelectric phase and then use these mechanisms to engineer a material with increased ferroelectric phase fraction, endurance, and data retention.

Bio

Jon Ihlefeld, Ph.D.

Professor, Materials Science and Engineering
University of Virginia

Dr. Jon Ihlefeld is a Professor in the Materials Science and Engineering and Electrical and Computer Engineering Departments at the University of Virginia. Prior to UVA, he held the positions of Senior, Principal, and Distinguished Member of the Technical Staff in the Materials Science and Engineering Center at Sandia National Laboratories. He holds a B.S. degree in Materials Engineering from Iowa State University and a Ph.D. in Materials Science and Engineering from North Carolina State University. He completed his education as a postdoctoral scholar at Penn State University in a joint position with the University of California-Berkeley.

He is the Chair for Ferroelectrics for the IEEE, a past Chair of the Electronics Division of The American Ceramic Society, an Associate Editor of the Journal of The American Ceramic Society, a past Principal Editor of the Journal of Materials Research, and serves on the Editorial Advisory Board for Applied Physics Letters. He is a Fellow of the American Ceramic Society and has received ACerS’ Richard M. Fulrath Award, the IEEE Ferroelectrics Young Investigator Award, a DARPA Young Faculty Award, and two R&D 100 Awards. He has published over 150 peer-reviewed publications and holds 16 U.S. patents.