Commonwealth Science Conference Bangalore 2014

Professor Low Teck Seng
Magnetics technologies and their impact

Magnetics technologies play an important role in our daily life. Motors and generators are helpful in areas such as energy generation, energy conservation and in information technology (e.g., hard disk drives). Recently, magnetics technology has also widened significantly into areas such as Spintronics, for which Albert Fert and Peter Grunberg received their Nobel prize in 2007. Spintronics is expected to supplement the Si-based conventional electronics. The speaker will start with his earlier works on permanent magnets modelling using finite elements method, which were useful in the design of motors and generators. Some examples of how the modelling could be extended to the design of hard disk drives and the related control systems will be described. After highlighting the impact of magnetics in the mechanical and electromagnetics systems, the speaker will proceed to show some examples of magnetic materials systems and their impact on daily life, such as increased data storage capacity of hard disk drives and the technologies behind them. Progress in the designs of recording media, spintronics read-sensors and the emerging magnetic random access memory technologies will then be described. The talk will be concluded with real life examples of how Singapore planned and strategized its activities in Magnetics and grew the hard disk drives and related industry and benefitted as a society.
[1] T.S. Low et al., IEEE Trans. Ind. Elec., 40(3) 307-316 (1993).
[2] Y.H. Wu et al., Nanolett. 2(2) 161-164 (2002).
[3] W. Guo et al., IEEE Trans. Magn. 34(2) 450-455 (1997).


 Lead image: Lalbagh botanical garden in Bangalore

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Professor John Pethica FRS Physical Secretary and Vice-President of the Royal Society


Sir Richard Friend FRS Cavendish Professor of Physics, University of Cambridge (UK)

Professor Teck Seng Low Chief Executive Officer, National Research Foundation, Singapore