NGUYEN2

FERROMAGNETIC PROPERTIES DEPENDENCE ON SHAPES OF NANOPARTICLES

 

Type

Experimental

#students

    1

Orientation

We have successfully generated 5-50 nm shape variant nanoparticles (NPs) (1).

                 

Figure 1. Formation of spherical (a), cubic (b), octopod-cubic (c), star (d), rod (e) and bilobar (f) Fe–Pt NPs. The image of the Fast Fourier Transform (FFT) of self-assembled NPs in the inset of (a) indicate that they were in a fcc structure. The inset of (d) shows zoom-in view on a few nanostars.

 

1.     D. Ung, L.D. Tung, G. Caruntu, D. Delapostas, Y. Alexandrous, I. Prior, N.T.K. Thanh (2009) Variant shape growth of nanoparticles of metallic Fe-Pt, Fe-Pd and Fe-Pt-Pd alloys . CrystEngComm. vol 11 pp 1309-1316

 

How

It is interesting to compare the properties of ferromagnetic particles with different shapes to understand how the magnetisation reversal can be controlled by sample geometry. Therefore, it is a challenge to synthesise MNPs of the same compositions but with different shapes to study the shape dependence.

 

What

Student will learn to synthesise nanoparticles and characatersise them with TEM, XRD, SQUID, and elemetal analysis.

The study will be conducted in a modern lab at The Royal Institution of Great Britain which  has a long and distinguished 200 year history, including the award of 14 Nobel Prizes, the discovery of 10 elements, and the invention of the electric generator, to name just a few of many seminal achievements.

 

For more details, you can go to Prof Thanh website: http://www.ntk-thanh.co.uk. The student can make informal contact by emailing Prof Thanh: ntk.thanh@ucl.ac.uk

 

Special Knowlegde

Chemistry A level at least, open minded and willing to learn

Supervisor

  Prof Nguyen TK Thanh