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Michael Moody

Professor Michael Moody
Professor of Materials
Fellow of Trinity College

Department of Materials
University of Oxford
16 Parks Road
Oxford OX1 3PH
UK

Tel: +44 1865 273693
Tel: +44 1865 273693 (Room 179.30.20)
Tel: +44 1865 273777 (reception)
Fax: +44 1865 273789 (general fax)

Atom Probe Group website

Summary of Interests

My interests are focused upon enabling materials research at the nanoscale via the microscopy techniques of atom probe tomography (APT) and field ion microscopy (FIM). APT is a technique capable of material characterisations at the atomic-scale, in which each atom is identified chemically and located in three-dimensions with very high accuracy. Hence, it is a technique rapidly rising in prominence. The Atom Probe Group in the Department of Materials at the University of Oxford is interested and active in all areas of this research across a broad range of material systems.

In particular, I am developing a variety of new analytical techniques to improve the three dimensional reconstructions generated by APT and the subsequent atom-by-atom analysis of the resulting data.  I am interested in applying these techniques to the characterisation of a wide variety of systems to inform materials research projects.

Research Publications

K.Y. Xie, A.J. Breen, L. Yao, M.P. Moody, B. Gault, J.M. Cairney, S.P. Ringer, Overcoming challenges in the study of nitrided microalloyed steels using atom probe, Ultramicroscopy, 112 (2012) 32-38.

F. Tang, D.S. Gianola, M.P. Moody, K.J. Hemker, J.M. Cairney, Observations of grain boundary impurities in nanocrystalline Al and their influence on microstructural stability and mechanical behaviour, Acta Materialia, 60 (2012) 1038-1047.

T. Homma, M. Moody, D. Saxey, S. Ringer, Effect of Sn Addition in Preprecipitation Stage in Al-Cu Alloys: A Correlative Transmission Electron Microscopy and Atom Probe Tomography Study, Metallurgical and Materials Transactions A, (2012) 1-11.

B. Gault, X.Y. Cui, M.P. Moody, F.d. Geuser, C. Sigli, S.P. Ringer, A. Deschamps, Atom probe microscopy investigation of Mg site occupancy within δ precipitates in an Al–Mg–Li alloy, Scripta Materialia, (2012).

V. Araullo-Peters, B. Gault, S.L. Shrestha, L. Yao, M.P. Moody, S.P. Ringer, J.M. Cairney, Atom probe crystallography: Atomic-scale 3-D orientation mapping, Scripta Materialia, (2012).

W.K. Yeoh, B. Gault, X.Y. Cui, C. Zhu, M.P. Moody, L. Li, R.K. Zheng, W.X. Li, X.L. Wang, S.X. Dou, G.L. Sun, C.T. Lin, S.P. Ringer, Direct Observation of Local Potassium Variation and Its Correlation to Electronic Inhomogeneity in (Ba1-xKx)Fe2As2 Pnictide, Physical Review Letters, 106 (2011) 247002.

L. Yao, M.P. Moody, J.M. Cairney, D. Haley, A.V. Ceguerra, C. Zhu, S.P. Ringer, Crystallographic structural analysis in atom probe microscopy via 3D Hough transformation, Ultramicroscopy, 111 (2011) 458-463.

K.L. Torres, B. Geiser, M.P. Moody, S.P. Ringer, G.B. Thompson, Field evaporation behavior in [0 0 1] FePt thin films, Ultramicroscopy, 111 (2011) 512-517.

L.T. Stephenson, M.P. Moody, S.P. Ringer, Theory of solute clustering in materials for atom probe, Philosophical Magazine, 91 (2011) 2200 - 2215.

L.T. Stephenson, M.P. Moody, B. Gault, S.P. Ringer, Estimating the physical cluster-size distribution within materials using atom-probe, Microscopy Research and Technique, 74 (2011) 799-803.

M.P. Moody, F. Tang, B. Gault, S.P. Ringer, J.M. Cairney, Atom probe crystallography: Characterization of grain boundary orientation relationships in nanocrystalline aluminium, Ultramicroscopy, 111 (2011) 493-499.

M.P. Moody, B. Gault, L.T. Stephenson, R.K.W. Marceau, R.C. Powles, A.V. Ceguerra, A.J. Breen, S.P. Ringer, Lattice Rectification in Atom Probe Tomography: Toward True Three-Dimensional Atomic Microscopy, Microscopy and Microanalysis, 17 (2011) 226-239.

B. Gault, S.T. Loi, V.J. Araullo-Peters, L.T. Stephenson, M.P. Moody, S.L. Shrestha, R.K.W. Marceau, L. Yao, J.M. Cairney, S.P. Ringer, Dynamic reconstruction for atom probe tomography, Ultramicroscopy, 111 (2011) 1619-1624.

B. Gault, D. Haley, F. de Geuser, M.P. Moody, E.A. Marquis, D.J. Larson, B.P. Geiser, Advances in the reconstruction of atom probe tomography data, Ultramicroscopy, 111 (2011) 448-457.

B. Gault, Y.M. Chen, M.P. Moody, T. Ohkubo, K. Hono, S.P. Ringer, Influence of the wavelength on the spatial resolution of pulsed-laser atom probe, J. Appl. Phys., 110 (2011) 094901-094905.

F. Tang, T. Alam, M.P. Moody, B. Gault, J.M. Cairney, Challenges Associated with the Characterisation of Nanocrystalline Materials using Atom Probe Tomography, in: J.F. Nie, A. Morton (Eds.) Pricm 7, Pts 1-3, Trans Tech Publications Ltd, Stafa-Zurich, 2010, pp. 2366-2369.

B. Gault, M. Muller, A.L. Fontaine, M.P. Moody, A. Shariq, A. Cerezo, S.P. Ringer, G.D.W. Smith, Influence of surface migration on the spatial resolution of pulsed laser atom probe tomography, J. Appl. Phys., 108 (2010) 044904.

B. Gault, M.P. Moody, F. De Geuser, A. La Fontaine, L.T. Stephenson, D. Haley, S.P. Ringer, Spatial Resolution in Atom Probe Tomography, Microscopy and Microanalysis, 16 (2010) 99-110.

B. Gault, A. La Fontaine, M.P. Moody, S.P. Ringer, E.A. Marquis, Impact of laser pulsing on the reconstruction in an atom probe tomography, Ultramicroscopy, 110 (2010) 1215-1222.

A.V. Ceguerra, R.C. Powles, M.P. Moody, S.P. Ringer, Quantitative description of atomic architecture in solid solutions: A generalized theory for multicomponent short-range order, Physical Review B, 82 (2010) 132201.

A.V. Ceguerra, M.P. Moody, L.T. Stephenson, R.K.W. Marceau, S.P. Ringer, A three-dimensional Markov field approach for the analysis of atomic clustering in atom probe data, Philosophical Magazine, 90 (2010) 1657 - 1683.

R.K. Zheng, M.P. Moody, B. Gault, Z.W. Liu, H. Liu, S.P. Ringer, On the understanding of the microscopic origin of the properties of diluted magnetic semiconductors by atom probe tomography, Journal of Magnetism and Magnetic Materials, 321 (2009) 935-943.

M.P. Moody, B. Gault, L.T. Stephenson, D. Haley, S.P. Ringer, Qualification of the tomographic reconstruction in atom probe by advanced spatial distribution map techniques, Ultramicroscopy, 109 (2009) 815-824.

B. Gault, M.P. Moody, F. de Geuser, G. Tsafnat, A. La Fontaine, L.T. Stephenson, D. Haley, S.P. Ringer, Advances in the calibration of atom probe tomographic reconstruction - art. no. 034913, J. Appl. Phys., 105 (2009) 34913-34913.

B. Gault, M.P. Moody, F. de Geuser, D. Haley, L.T. Stephenson, S.P. Ringer, Origin of the spatial resolution in atom probe microscopy, Appl. Phys. Lett., 95 (2009) 1-3.

S.K. Seal, K. Rajan, S. Aluru, M.P. Moody, A.V. Ceguerra, S.P. Ringer, Tracking Nanostructural Evolution in Alloys: Large-scale Analysis of Atom Probe Tomography Data on Blue Gene/L, in: The 37th International Conference On Parallel Processing (ICPP-08), Portland, Oregon, USA 2008.

M.P. Moody, L.T. Stephenson, A.V. Ceguerra, S.P. Ringer, Quantitative binomial distribution analyses of nanoscale like-solute atom clustering and segregation in atom probe tomography data, Microscopy Research and Technique, 71 (2008) 542-550.

B. Gault, M.P. Moody, D.W. Saxey, J.M. Cairney, Z. Liu, R. Zheng, R.K.W. Marceau, P.V. Liddicoat, L.T. Stephenson, S.P. Ringer, Atom Probe Tomography at The University of Sydney, in:  Advances in Materials Research - Frontiers in Materials Research, Springer, Berlin Heidelberg, 2008, pp. 187-216.

B. Gault, F. de Geuser, L.T. Stephenson, M.P. Moody, B.C. Muddle, S.P. Ringer, Estimation of the reconstruction parameters for atom probe tomography, Microscopy and Microanalysis, 14 (2008) 296-305.

L.T. Stephenson, M.P. Moody, P.V. Liddicoat, S.P. Ringer, New techniques for the analysis of fine-scaled clustering phenomena within atom probe tomography (APT) data, Microscopy and Microanalysis, 13 (2007) 448-463.

M.P. Moody, L.T. Stephenson, P.V. Liddicoat, S.P. Ringer, Contingency table techniques for three dimensional atom probe tomography, Microscopy Research and Technique, 70 (2007) 258-268.

M.F. Herman, M.P. Moody, Numerical study of the accuracy and efficiency of various approaches for Monte Carlo surface hopping calculations - art. no. 094104, Journal of Chemical Physics, 122 (2005) 94104-94104.

M.P. Moody, P. Attard, Monte Carlo simulation methodology of the ghost interface theory for the planar surface tension, Journal of Chemical Physics, 120 (2004) 1892-1904.

M.F. Herman, O. El Akramine, M.P. Moody, Globally uniform semiclassical surface-hopping wave function for nonadiabatic scattering, Journal of Chemical Physics, 120 (2004) 7383-7390.

M.P. Moody, F. Ding, M.F. Herman, Phase corrected higher-order expression for surface hopping transition amplitudes in nonadiabatic scattering problems, Journal of Chemical Physics, 119 (2003) 11048-11057.

M.P. Moody, P. Attard, Curvature-dependent surface tension of a growing droplet - art. no. 056104, Physical Review Letters, 9105 (2003) 6104-6104.

M.P. Moody, P. Attard, Homogeneous nucleation of droplets from a supersaturated vapor phase, Journal of Chemical Physics, 117 (2002) 6705-6714.

P. Attard, M.P. Moody, J.W.G. Tyrrell, Nanobubbles: the big picture, Physica A-Statistical Mechanics and Its Applications, 314 (2002) 696-705.

M.P. Moody, P. Attard, Curvature dependent surface tension from a simulation of a cavity in a Lennard-Jones liquid close to coexistence, Journal of Chemical Physics, 115 (2001) 8967-8977.

 

Projects Available

Developing 3D Atomic-Scale Microscopy to Investigate Hydrogen Embrittlement
M. P. Moody / D. J. Haley

The unambiguous characterisation of the distribution of hydrogen in materials is extremely challenging for any microscopy technique. This project will develop Atom Probe Tomography, a 3D atomic-scale microscopy technique, to identify and locate individual hydrogen atoms in the microstructure of engineering steels and alloys. The goal is to gain insights into hydrogen embrittlement. This phenomenon causes catastrophic failure of materials in service for a very wide range of applications. APT is a microscopy technique capable of generating large 3D atom-by-atom images of a material, in which the chemical identity of every atom is characterised with very high accuracy. Hence, APT provides a powerful means to investigate the onset of nanostructural damage that result in the failure of materials in service. This project offers an interesting blend of experimental and analytical challenges, and will make a unique contribution to a larger multi-institutional programme of research in this area.

Also see homepages: Michael Moody

Enhancing 3D Atom Probe Imaging for Nano-Electronic Devices
D. Haley, P.A.J. Bagot, M.P. Moody

Atom Probe Tomography (APT) is a microscopy technique that offers atomic scale spatial and chemical resolution, providing unique insights to an array of materials research programmes. Based upon the physics that underpin the technique, the aim of this project is to design, develop and evaluate a new analytical scheme to reconstruct data obtained from APT experiments, and ultimately significantly improve the quality of images obtained from this microscope.

This projects requires a demonstrated capacity for the solution of applied mathematical problems, good working knowledge of numerical computing, such as a background understanding of multidimensional differential equations and understanding of implementation of numerical solvers. A programming background in numerical computing is essential (e.g C/C++, python, etc.). The student will also be trained to operate the atom probe, enabling data acquisition to support their numerical research The application will be targeted towards high fidelity imaging of nano-electronic devices, such as nm-scale transistors, designed by our industrial collaborators

Also see homepages: Michael Moody

Also see a full listing of New projects available within the Department of Materials.