UJ’s visiting Prof Adekunle Adeyeye to explore Magnetic Nanostructures

The Department of Applied Chemistry takes great pleasure in hosting Prof Adekunle Adeyeye, a Distinguished Visiting Professor at University of Johannesburg (UJ) for a public lecture entitled Reconfigurable Magnetic Nanostructures for Information Storage and Magnonic Applications on Thursday, 5 May 2016. The hour long lecture at the Library Auditorium (Auckland Park Kingsway Campus) is scheduled to start at 1 pm.

The presentation will focus on the fundamental understanding and exploration of magnetic nanostructures in applications such as ultra-high-density storage, magnetic random access memory and spin logic.

Prof Adeyeye will clarify the design and fabrication strategies for synthesizing nanomagnetic networks over very large areas. “We have developed advanced processes for synthesizing magnetic nanostructures using lithographic techniques,” says Prof Adeyeye.

“Resolution enhancement techniques such as alternating phase shift and chrome-less phase shift masks have been used to fabricate arrays of ferromagnetic nanostructures with lateral dimensions below the conventional resolution limit. A novel ‘self-aligned shadow deposition’ technique we have developed for synthesizing binary magnetic nanostructures consisting of one or two contrasting ferromagnetic materials will also be presented.”

Prof Adeyeye will also highlight the recent design strategies for implementing nanomagnetic network schemes with deterministic magnetic ground states for logic and magnonic applications.

He points out that reliable reconfiguration between ferromagnetic, antiferromagnetic and ferrimagnetic ground magnetic states will be shown in rhomboid nanomagnets which stabilise to unique ground states upon field initialised along their short axis.

“The results of a systematically investigation of spin wave propagation and gating in a linear chain of rhomboid nanoresonators using broadband ferromagnetic resonance spectroscopy and micro-focused Brillouin light scattering technique will be presented,” says Prof Adeyeye.

Born in Nigeria, Professor Adeyeye graduated with a First Class Honors degree from the University of IIorin, Nigeria in 1990. He obtained an MPhil (Microelectronic Engineering and semiconductor Physics) and PhD degrees from the University of Cambridge (UK), in 1993 and 1996, respectively.

Prof Adeyeye is a Fellow of the Institute of Physics, Fellow of the Institute of Nanotechnology and Senior Member of the Institute of Electrical and Electronic Engineering. He has won many awards and was named one of the top 100 young innovators in the world by TR100, an award winning MIT magazine on technology. He was a winner of the NUS Young Researcher Award (2004), IEEE Magnetic society Distinguished Lecturer award (2013), NUS Engineering Researcher Award (2014). He is the College Master of Ridge View Residential College at NUS.

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