Dr John Fitzgerald

Visiting Fellow
Visitor - Rock physics
J2, G39
 +61 2 61251655


Research interests

  • Electron microscopy, diffraction and microanalysis
  • Microstructures
  • Identification of processes responsible for deformation and seismic-wave attenuation grain boundaries
  • Melt distribution at the grain scale in partially molten rocks
  • Microstructural changes for mineral reactions with large volume change
  • Nanotubes - C and BN
  • Defects in semiconductors following ion implantation and annealing




  • Withers, R.L., Liu, Y., Norén, L. and Fitz Gerald, J.D. A TEM study of Ni ordering in the Ni6Se5-xTex, 0 < x < ~1.7, system. J. Solid State Chem., 177, 972-978.
  • Chen, Y., Conway. M.J., Fitz Gerald, J.D., Williams, J.S. and Chadderton, L.T. (2004) The nucleation and growth of carbon nanotubes in a mechano-thermal process. In Press, Carbon


  • Liu, Y., Withers, R.L., and Fitz Gerald, J.D., 2003. A TEM, XRD, and crystal chemical investigation of oxygen/vacancy ordering in (Ba1-xLax) 2In2O5+x, 0?x?0.6, Journal of Solid State Chemistry 170, 247-254.
  • Withers, R.L., Liu, Y., Norén, L. and Fitz Gerald. J.D. A TEM and XRD study of Ni ordering in the wide range non-stoichiometric Ni6Se5-xTex, 0 < x< ~1.7 solid solution. Submitted to J. Solid State Chem.
  • Jackson, I, Faul, U.H., Fitz Gerald, J.D. and Tan, B. Shear-wave attenuation and dispersion in melt-bearing olivine polycrystals I. Specimen fabrication and mechanical testing. Journal of Geophysical Research, 109, B06201, doi:10.1029/2003JB002406.
  • Faul, U.H., Fitz Gerald, J.D. and Jackson, I. Shear-wave attenuation and dispersion in melt-bearing olivine polycrystals II. Microstructural interpretation and seismological implication. Journal of Geophysical Research, 109, B06202, doi:10.1029/2003JB002407.
  • Stünitz, H., Fitz Gerald, J.D. and Tullis, J, Dislocation generation, slip systems, and dynamic recrystallization in experimentally deformed plagioclase single crystals. Accepted for publication by Tectonophysics, 372, 215-233
  • Fitz Gerald. J.D., Chen, Y., and Conway, M.J. Nanotube growth during annealing of mechanically milled Boron, Applied Physics A, 76, 107-100.
  • Chen, Y., Conway, M. and Fitz Gerald, J.D. Carbon nanotubes formed in graphite after mechanical grinding and thermal annealing. Applied Physics A. 76, 633-636.


  • Jackson, I., Fitz Gerald, J.D., Faul, U.H. and Tan, B.H. Grain-size-sensitive seismic wave attenuation in polycrystalline olivine, Journal of Geophysical Research, 107,B12, 2360:doi:10.1029/2001JB001225.
  • Liu, Y., Withers, R.L. and Fitz Gerald J.D., 2002. A TEM, XRD and crystal chemical investigation of oxygen/vacancy ordering in (Ba1-xLax)2In2O5+x,)0 ≤ x ≤ 0.6. Accepted by - J. Solid State Chem.


  • Tan, B.H., Jackson, I. and Fitz Gerald, J.D., 2001 High-temperature viscoelasticity of fine-grained polycrystalline olivine, Physics and Chemistry of Minerals, 28, 641-664.
  • Wong-Leung, J., Jagadish, C., Conway, M.J., and Fitz Gerald, J.D., 2001. Effect of implant temperature on secondary defects created by MeV Sn implantation in silicon, Journal of Applied Physics, 89, 2556-2559.
  • Dowd, A,. Llewellyn, D., Elliman, R.G., Luther-Davies, B., Samoc, M. and Fitz Gerald, J.D., 2001. Physical and optical characterisation of Ge-implanted silica.


  • Chen Y., Chadderton L. T., Williams J. S., and Fitz Gerald J. D. (2000) Solid-state formation of Carbon and Boron Nitride nanotubes. In Mater. Science Forum, pp. 63-67.
  • Jackson I., Fitz Gerald J. D., and Kokkonen H. (2000) High-temperature viscoelastic relaxation in Iron and its implications for the shear modulus and attenuation of the Earth's inner cor. In J. Geophys. Res. (eds pp. 23605-23634.
  • Keankeo W., Taylor W. R., and Fitz Gerald J. D. (2000) Cinoferrosilite-bearing kelyphite: a breakdown product of xenolithic garnet, Delegate breccia pipes, New South Wales, Australia. In Mineral. Mag., pp. 469-479.
  • McLaren A. C. and Fitz Gerald J. D. (2000) Microstructural changes and deformation during the phase transformations in solid Ammonium Nitrate, (eds In M.W. Jessell and J.L. Urai (eds.) Stress, Strain and Structure, A Volume in honour of W.D. Means, Vol 2, Journal of the virtual Explorer, W. Jessel and J.L. Urai, Eds.


  • Chen Y., Fitz Gerald J., Chadderton L. T., and Chaffron L. (1999a) Investigation of nanoporous Carbon powders produced by high energy ball milling and formation of carbon nanotubes during subsequent annealing. Mater. Science Forum, 375-380.
  • Chen Y., Fitz Gerald J., Williams J. S., and Willis P. (1999b) Mechanochemical synthesis of boron nitride nanotubes. Mater. Science Forum, 173-178.
  • Chen Y., Fitz Gerald J. D., Chadderton L. T., and Chaffron L. (1999c) Nanoporous carbon produced by ball milling. Appl. Phys. Lett., 74: 2782-2784.
  • Chen Y., Fitz Gerald J. D., Chadderton L. T., and Williams J. S. (1999d) A solid-state process for formation of boron nitride nanotubes. Appl. Phys. Lett., 74: 2960-2962.
  • Chen Y., Fitz Gerald J. D., Williams J. S., and Bulcock S. (1999e) Synthesis of boron nitride nanotubes at low temperatures using reactive ball milling. Chem. Phys. Lett., 299: 260-264.
  • Fatima S., Wong-Leung J., Fitz Gerald J., and Jagadish C. (1999) Effect of ion mass on the evolution of extended defects during annealing of MeV ion-implanted p-type Si. Appl. Phys. Lett., 74: 1141-1143.
  • Faul U. H. and Fitz Gerald J. D. (1999) Grain misorientations in partially molten olivine aggregates: an electron backscatter diffraction study. Phys. Chem. Minerals, 26: 187-197.
  • Webb S., Jackson I., and Fitz Gerald J. (1999a) Viscoelastic rheology of the Titanate Perovskites CaTiO3 and SrTiO3 at high temperature. Phys. Earth Planet. Inter., 115: 259-291.


  • Glasko, J.M., Elliman, R.G., Zou, J., Cockayne, D.J. and Fitz Gerald, J.D., (1998) Strain and defect microstructure in ion-irradiated GeSi/Si strained layers as a function of annealing temperature. Appl. Phys. Lett., 73, 838-840.
  • Prewitt, C.T., Ko, T. Shen, G. and Fitz Gerald, J.D. (1998) Role of twinning in perovskite - lithium niobate phase transitions. Rev. High Pressure Sci. Technol., 7, 40-43.
  • Cmiral, M., Fitz Gerald, J.D., Faul, U.H. and Green, D.H. (1998) A close look at dihedral angles and melt geometry in olivine-basalt aggregates: a TEM study. Contrib. Mineral. Petrol., 130, 336-345.
  • Ma, C., Fitz Gerald, J.D., Eggleton, R.A. and Llewellyn D.J. (1998) Analytical electron microscopy in clays and other phyllosilicates: loss of elements from A 90-nm stationary beam of 300-keV electrons. Clays and Clay Minerals, 46, 3, 301-316.
  • Kesson, S.E., Fitz Gerald, J.D. and Shelley, J.M. (1998) Mineralogy and dynamics of a pyrolite lower mantle. Nature, 393, 252-255.
  • Faul, U.H. and Fitz Gerald, J.D. (1998) Grain misorientations in partially molten olivine aggregates: an electron backscatter diffraction study. Accepted by Phys Chem Minerals.
  • Fatima, S., Wong-Leung, J., Fitz Gerald, J.D. and Jagadish, C. (1998) Electrical characterisation of the threshold fluence for extended defect formation in p-type Silicon implanted with MeV Si ions. Appl. Physics Lett. 72, 3044-3046.


  • Senden, T.J., Moock, K.H., Fitz Gerald, J.D., Burch, W., Browitt, R., Ling, C. and Heath, G.A. (1997) The physical and chemical nature of Technegas. J. Nucl. Medicine, 38, 1327-1333.
  • Gautron, L., Fitz Gerald, J.D., Eggleton, R.A., Irifune, T. and Kesson, S.E. (1997) Hexagonal barium ferrite: a good model for the crystal structure of a new high-pressure calcium aluminosilicate phase CaAl4Si2O11? Phys. Earth Planet. Int., 102, 227-229.
  • Wang, J., Tomita, A., Taylor, G.H. and Fitz Gerald, J.D. (1997) Microscopic observation of coal demineralization by Ca(OH)2 leaching. Fuel., 76, 369-374.
  • Glasko, J.M., Elliman, R.G., Fitz Gerald, J.D. and Kringhøj, P. (1997) The effect of ion irradiation on the thermal structure of GeSi/Si strained layer heterostructures. Nucl. Instr. and Methods in Phys. Res. B, 127, 397-400.
  • Llewellyn, D.J., Ridgway, M.C. and Fitz Gerald, J. (1997) Implantation and annealing of Cu in InP for electrical isolation: microstructural characterisation. In Press, Proc. 1996Conf. Optoelectronic and Microelectronic Materials and Devices, C Jagadish (ed.)
  • Glasko, J.M., Zou, J., Cockayne, D.J.H., Fitz Gerald, J.D. and Elliman, R.G. (1997) The effect of irradiation temperature on post-irradiation strain levels in GexSi1-x/Si strained layer heterostructures. Mat. Res. Soc. Symp. Proc., 442, 367-372.
  • Tan, B-H., Jackson, I and Fitz Gerald, J.D. (1997) Shear wave dispersion and attenuation in fine-grained synthetic olivine aggregates: preliminary results. J. Geophys. Res. 24, 1055-1058.
  • Drury, M.R. and Fitz Gerald, J.D. (1997) Mantle rheology : insights from laboratory studies of deformation and phase transition. Pp. 503-559 in I.N.S. Jackson (ed.),The Earth's mantle: composition, structure and evolution., Cambridge Univ. Press.
  • Kesson, S., Ringwood, A.E., Hibberson, W., Fitz Gerald, J.D. and Ware, N.G. (1997) Reaction between magnesiowüstite of lower mantle composition and core-forming Fe-Ni alloy at 1-40 GPa. Amer. Mineral., 82, 526-533.


  • Drury, M.R. and Fitz Gerald, J.D. (1996) Grain boundary melt films in an experimentally deformed olivine-orthopyroxene rock: implications for melt distribution in the upper mantle. Geophys. Res. Lett., 23, 701-704.


  • Pang, L.S.K., Prochazka, L., Quezeda, R.A., Wilson, M.A., Pallaser, R., Fisher, K.J., Fitz Gerald, J.D., Taylor, G.H., Willett, G.D. and Dance, I.G. (1995). Competitive reactions during plasma arcing of carbonaceous materials. Energy & Fuels, 9, 38-44.
  • Kesson, S.E., Fitz Gerald, J.D. and Shelley, J.M.G. (1995). Mineral chemistry and density of subducted basaltic crust at lower mantle pressures. Nature, 372, 767-769.
  • Kesson, S.E., Fitz Gerald, J.D., Shelley, J.M.G., and Withers, R.L. (1995). Phase relations, structure and crystal chemistry of some aluminous perovskites. Earth Planet. Sci. Lett., 134, 187-201.


  • Taylor, G.H., Fitz Gerald, J.D., Pang, L.S.K. and Wilson, M.A. (1994). Cathode deposits in fullerene formation - microstructural evidence for independent pathways of pyrolytic carbon and nanobody formation. J. Cryst. Growth, 135, 157-164.
  • Ellacott, M.V., Pang, L.S.K., Prochazka, L., Wilson, M.A., Fitz Gerald, J.D. and Taylor, G.H. (1994). Composition of cathode deposits during fullerene production by carbon arc plasma. Carbon, 32, 542-544.
  • Fitz Gerald, J.D., Taylor, G.H. and Pennock, G.M. (1994). Microstructure of hydrogenated coal-tar pitches. Carbon, 32, 1389-1395.
  • Wilson, M.A., Pang, L.S.K., Quezeda, R., Prochazka, L., Pallaser, R., Rigby, D., Taylor, G.H. and Fitz Gerald, J.D. (1994). Cathode deposits during plasma arcing of coal. Pp. 463-470 in Proc. 6th Aust. Coal Science Conf., Aust. Inst. Energy, Newcastle.
  • Camacho, A., Vernon, R.H., and Fitz Gerald, J.D. (1994). Large volumes of anhydrous pseudotachylyte in the Woodroffe Thrust, eastern Musgrave Ranges, Australia. J. Struct. Geol., 17, 371-381.

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