Dr Amelia Liu - Researcher Profile

Biography

Amelia works in the School of Physics at Monash University as a Margaret Clayton Research Fellow

 

  

Amelia’s research areas of interest are:

 

• My broad interests are materials science and transmission electron microscopy. I have a particular focus on amorphous materials and glasses. Amorphous solids lack long-range periodic atomic order, and their atomic structure is often poorly understood. By developing transmission electron microscopy techniques to measure the atomic-scale structure of amorphous materials I hope to understand how differences in preparation and treatment give rise to differences in properties. Projects in which I have an abiding interest include:
• Understanding how composition and method of preparation alter the short (below 1 nm) to medium-range (1-3 nm) atomic order in metallic glasses, amorphous semiconductors, diamond-like carbons and chalcogenide glasses and how this impacts on their behaviours
• Using measurements of atomic structure to constrain large atomic models of amorphous materials
• Employing ion irradiation as a means of modifying the structures of amorphous materials and nanotubes

Keywords

Materials science, Transmission electron microscopy

Qualifications

PHILOSOPHY - PHYSICS

Institution: University of Melbourne

Year awarded: 2003

BSC (HONS) BA

Institution: University of Melbourne

Year awarded: 1999

Publications

Journal Articles

Borisenko, K., Haberl, B., Liu, A., Chen, Y., Li, G., Williams, J., Bradby, J., Cockayne, D., Treacy, M., 2012, Medium-range order in amorphous silicon investigated by constrained structural relaxation of two-body and four-body electron diffraction data, Acta Materialia [P], vol 60, issue 1, Pergamon-Elsevier Science, Oxford UK, pp. 359-375.

Eastwood, S., Paganin, D., Liu, A., 2011, Automated phase retrieval of a single-material object using a single out-of-focus image, Optics Letters [P], vol 36, issue 10, Optical Society of America, USA, pp. 1878-1880.

Liu, A., Paganin, D., Bourgeois, L., Nakashima, P., 2011, Projected thickness reconstruction from a single defocused transmission electron microscope image of an amorphous object, Ultramicroscopy [P], vol 111, issue 8, Elsevier BV, The Netherlands, pp. 959-968.

Liu, A., Paganin, D., Bourgeois, L., Nakashima, P., Ott, R., Kramer, M., 2011, Quantitative microscopic measurement of void distribution in shear bands in Zr(66.7)Cu(33.3) metallic glass, Physical Review B - Condensed Matter and Materials Physics [P], vol 84, issue 9, American Physical Society, USA, pp. 1-7.

Kirk, M.A., Baldo, P.M., Liu, A.C.Y., Ryan, E.A., Birtcher, R.C., Yao, Z., Xu, S., Jenkins, M.J., Hernandez-Mayoral, M., Kaoumi, D., Motta, A.T., 2009, In situ transmission electron microscopy and ion irradiation of ferritic materials, Microscopy Research and Technique [P], vol 72, Wiley-Liss Inc, USA, pp. 182-186.

Haberl, B., Liu, A.C.Y., Bradby, J.E., Ruffell, S., Williams, J.S., Munroe, P., 2009, Structural characterization of pressure-induced amorphous silicon, Physical Review B - Condensed Matter and Materials Physics [P], vol 79, issue 15, American Physical Society, USA, pp. 155209-1-155209-8.

Liu, A., Chen, X., Choi, D., Luther-Davies, B., 2008, Annealing-induced reduction in nanoscale heterogeneity of thermally evaporated amorphous As2 S3 films, Journal Of Applied Physics [P], vol 104, issue 9, American Institute of Phyics, New York, USA, pp. 093524-1-093524-7.

Sordelet, D.J., Ott, R.T., Li, M.Z., Wang, S.Y., Besser, M.F., Wang, C.Z., Liu, A.C.Y., Kramer, M.J., 2008, Structure of ZrxPt100-x (73 = x = 77) metallic glasses, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science [P], vol 39, issue 8, Springer, Boston USA, pp. 1908-1916.

Liu, A.C.Y., Arenal, R., Chen, X., 2007, Clustering in a highly hydrogenated diamondlike carbon determined using fluctuation electron microscopy and phenomenological atomistic simulations, Physical Review B - Condensed Matter and Materials Physics [P], vol 76, issue 2, American Physical Society, USA, pp. 121401-1-121401-4.

Arenal, R., Liu, A.C.Y., 2007, Clustering of aromatic rings in near-frictionless hydrogenated amorphous carbon films probed using multiwavelength Raman spectroscopy, Applied Physics Letters [P], vol 91, issue 21, American Institute of Physics, USA, pp. 211903-1-211903-3.

Batra, D., Seifert, S., Varela, L.M., Liu, A.C.Y., Firestone, M.A., 2007, Solvent-mediated plasmon tuning in a gold-nanoparticle -poly(ionic liquid) composite, Advanced Materials for Optics and Electronics [E], vol 17, issue 8, Wiley - VCH Verlag GmbH & Co. KGaA, Germany, pp. 1279-1287.

Liu, A.C.Y., Arenal, R., Miller, D.J., Chen, X., Johnson, J.A., Eryilmaz, L., Erdemir, A., Woodford, J.B., 2007, Structural order in near-frictionless hydrogenated diamondlike carbon films probed at three length scales via transmission electron microscopy, Physical Review B - Condensed Matter and Materials Physics [P], vol 75, issue 20, American Physical Society, USA, pp. 205402-1-205402-13.

Liu, A.C.Y., McCallum, J., 2004, The potential for the fabrication of wires embedded in the crystalline silicon substrate using the solid phase segregation of gold in crystallising amorphous volumes, Materials Science & Engineering B: Solid-State Materials for Advanced Technology [P], vol 108, Elsevier BV, The Netherlands, pp. 227-240.

Liu, A.C.Y., McCallum, J., Deenapanray, P.N.K., 2003, Defective crystal recovered from the crystallization of potassium-doped amorphous silicon films, Journal of the Electrochemical Society [P], vol 150, issue 4, The Electrochemical Society Inc, USA, pp. G266-G270.

Liu, A.C.Y., McCallum, J., 2003, Minimisation of spanning dislocations in the crystallisation of deep amorphous silicon wells through the alignment of volume edges with fast growth directions, Materials Science & Engineering B: Solid-State Materials for Advanced Technology [P], vol B97, Elsevier BV, The Netherlands, pp. 167-175.

Conference Proceedings

Liu, A.C.Y., Arenal, R., CHen, X., Miller, D.J., Erdemir, A., Johnson, J.A., Eryilmaz, L., Woodford, J.B., 2007, Short and medium range order in hydrogenated diamond-like carbon films, Microscopy and Microanalysis, Cambridge Press, USA, pp. 1272CD-1273CD.