Guest lecturer this Wednesday April 9 @ 6Pm in Burlington
Raoul Ouedraogo
Dear APS Boston members,
Just a reminder that Prof. Nian Sun from Northeastern University will be our guest lecturer this Wednesday April 9 @ 6Pm.
Title: Multiferroic Heterostructures and Low-Power Devices for Sensing, Power, RF and Microwave Electronics
Date: Wednesday, April 9, 2014
Time: 6pm --- Refreshments @ 5.30pm
Venue: Kostas Research Institute for Homeland Security, 141 South Bedford Street, Burlington, MA 01803
Registration is encouraged: https://meetings.vtools.ieee.org/meeting_view/list_meeting/24217
Abstract: The coexistence of electric polarization and magnetization in multiferroic materials provides great opportunities for realizing magnetoelectric coupling, including electric field control of magnetism, or vice versa, through a strain mediated magnetoelectric interaction effect in layered magnetic/ferroelectric multiferroic heterostructures [1-7]. Strong magnetoelectric coupling has been the enabling factor for different multiferroic devices, which however has been elusive, particularly at RF/microwave frequencies. In this presentation, I will cover the most recent progress on novellayered microwave multiferroic heterostructures and devices, which exhibit strong magnetoelectric coupling. We will demonstrate strong magnetoelectric coupling in novel microwave multiferroic heterostructures. These multiferroic heterostructures exhibit a giant voltage tunable magnetic field of 3500 Oe, and a high electrostatically tunable ferromagnetic resonance frequency range between 1.75~ 7.57 GHz, a tunable frequency of 5.82 GHz or fmax/fmin=4.3 [2,3]. At the same time, we will demonstrate E-field modulation of anisotropic magnetoresistance, giant magnetoresistance and exchange bias at room temperature in different multiferroic heterostructures [4]. New multiferroic devices will also be covered in the talk, including ultra-sensitive nanoelectromechanical systems magnetoelectric sensors with picoTesla sensitivity [5], multiferroic voltage tunable bandpass filters [6], voltage tunable inductors [7], tunable bandstop filters, tunable phase shifters and spintronics, etc.
For more information, please visit http://www.ieeeboston.org/org/subgroups/antennas_propagation.html