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Interview: Prof. Gaojian Wu, Nanjing University of Technology

Hello Professor Gaojian Wu, Which department in Nanjing University of Technology do you belong to? What is your research area and direction? What topics are you most interested in?

I currently work in the School of Physical and Mathematical Sciences of Nanjing University of Technology. My main research area is condensed matter physics. My background in mathematics led me to the study of the frequency response of the magnetoelectric effect. More recently I am studying the frequency response of the magnetic coefficient in magnetoelectric composite materials. In the future, I may consider expanding into studying the influence of magnetic modulation on optical properties.

What are your most recent publications? What are the highlights?

In the last three years, I published four papers, all of which are basically related to the frequency response of the magnetoelectric effect. One of them is titled “Enhanced converse magnetoelectric effect in cylindrical piezoelectric-magnetostrictive composites” (Eur. Phys. J. Appl. Phys. (2016) 76: 10602) which contributes to the theory and the experimental research of cylindrical structure enhancing the converse magnetoelectric effect.

There was another great article on studying the problem of resonance frequency of the resonance direct and converse magnetoelectric coefficient “Inequivalence of direct and converse magnetoelectric coupling at electromechanical resonance” which was published in Applied Physics Letters in 2013. This paper proposes a new method to explain the resonance direct and the converse magnetoelectric effect. This publication was very well received in the research community.

What are the challenges you face in your scientific experiments? What are your expectations for scientific test and measurement equipment?

The most important challenge is the use of electrodeless plating methods to prepare cylindrical samples. The main reasons are: individuals are not familiar with the chemical preparation methods, and experimental preparation parameters are more difficult to reproduce. Our most important criteria for test instrumentation are high efficiency and user intuition, plus ease-of-use and convenient data collection. As well data should be conveniently provided by the software in order for easy post-processing. Consequently not only can we enjoy the most advanced precision instrumentation, but also we do not need to spend too much time on learning how to use the equipment. We can then put more energy into the research and data analysis.

What are your favorite travelling destinations?

My most favorite touristic destination is Guilin. I enjoy very much the natural scenery there, where the landscape is simply ”the devil’s work”.

Which favorite sport do you practice?

Sometimes running at night, the main motivation is to exercise as well as to relax the brain. Sometimes running can spark new research ideas.

Gaojian Wu

Professor Gaojian Wu researches condensed matter physics in the Department of Applied Physics, Nanjing University of Technology, Nanjing 210009, People's Republic of China

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