Home > Seminars > Electric Field Control of Magnetism for Energy Efficient Memory and Logic Devices

Electric Field Control of Magnetism for Energy Efficient Memory and Logic Devices


2/7/2019 at 2:00PM


2/7/2019 at 3:00PM


116 O'Shaughnessy Hall


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Christopher Hinkle


Department of Electrical Engineering Bettex Collegiate Chair and Associate Professor
College of Engineering Bettex Collegiate Chair and Associate Professor
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My group investigates and engineers strong correlations between ferroic orders in artificial and intrinsic multiferroics, materials with more than one ferroic order, specifically to couple ferroelectric and magnetic orders (magnetoelectricity), and demonstrated the electric field control of magnetism. Here I will discuss the advances we have made in magneto electric switching using exchange and strain based multiferroic materials to realize unprecedented magneto electric transduction in device compatible geometries. We find that magneto electric switching is orders of magnitude more energy efficient than spin torques and lead to projected energy dissipation per operation at device scale to be in the 10’s of attojoules.

Seminar Speaker:

Dr. John Heron

Dr. John Heron

University of Michigan

John Heron was awarded B.S. from UC Santa Barbara in 2007 where he studied magnetic semiconductors in the lab of Prof. David Awschalom. For masters and Ph.D. degrees (awarded in 2011 and 2013), he investigated magneto electric switching of thin film BiFeO3 under the mentorship of Prof. Ramamoorthy Ramesh at UC Berkeley. Heron received the Ross N. Tucker award for superior work and scholarship in the characterization, development and/or use of semiconductor, magnetic, optical or electronic materials by a graduate student or students pursuing such areas of inquiry at the University of California, Berkeley in 2013.  As a postdoc in the lab of Prof. Schlom, Heron investigated magneto electric switching in novel composite multiferroic heterostructures. Since Jan. 2016, John Heron is now Assistant Professor of Materials Science and Engineering at the University of Michigan.