Matthew Zacate
Associate Professor of Physics

Publications

Edited volume

Proceedings of the 12th International Conference on Hyperfine Interactions, guest editors W. E. Evenson, H. Jaeger, and M. O. Zacate, Hyperfine Interactions 136-137 (Kluwer, Dordrecht, 2002).

Defects and Diffusion Studied Using PAC Spectroscopy, guest editors J. Jaeger and M. O. Zacate, Defect and Diffusion Forum 311 (Trans Tech Publications, Switzerland 2011).

Scientific papers

  1. R. Platzer, E. Karapetrova, M. O. Zacate, J. A. Gardner, J. A. Sommers, and W. E. Evenson, "Oxygen Vacancies in Zirconia" Materials Science Forum, 239, 57-60 (1997).
  2. J. A. Gardner, T. Lee, N. Mommer, E. Karapetrova, M. O. Zacate, R. Platzer, W. E. Evenson, and J. A. Sommers, "Dynamics and Thermodynamics of Tetragonal Zirconia Determined by 111In/Cd TDPAC" Hyperfine Interactions 120/121(1-4), 87-95 (1999).
  3. W. E. Evenson, J. Lu, M. W. Winz, J. A. Gardner, and M. O. Zacate, "Stochastic PAC Models for Vacancy Motions with Trapping and Detrapping" Hyperfine Interactions 120/121(1-4), 427-431 (1999).
  4. M. O. Zacate and R. W. Grimes, "Intrinsic Defect Processes in Ca-Al-Fe-O Cement-Phase Compounds" Journal of Materials Science 34, 445-449 (1999).
  5. M. O. Zacate, R. W. Grimes, P. D. Lee, S. R. LeClair, and A. G. Jackson, "Cellular Automata Model for the Evolution of Inert Gas Monolayers on a Calcium (111) Surface" Modelling and Simulation in Materials Science and Engineering 7, 355-367 (1999).
  6. L. Minervini, M. O. Zacate, and R. W. Grimes, "Defect Cluster Formation in M2O3 Doped CeO2" Solid State Ionics 116, 339-349 (1999).
  7. K. J. W. Atkinson, R. W. Grimes, M. O. Zacate, P. D. Lee, A. G. Jackson, and S. R. LeClair, "Predicting microstructures from atomistic rule set cellular automata" JOM-e 51, (1999); http://www.tms.org/pubs/journals/JOM/9908/Atkinson/Atkinson-9908.html
  8. M. O. Zacate, R. W. Grimes, and K. Scrivener, "Predicted Calcium Titanate Solution Mechanisms in Calcium Aluminoferrite and Related Phases" Journal of Materials Science 35, 3727-3732 (2000).
  9. M. O. Zacate, L. Minervini, D. Bradfield, R. W. Grimes, and K. E. Sickafus, "Defect cluster formation in M2O3-doped cubic ZrO2" Solid State Ionics 128, 243-254 (2000).
  10. M. O. Zacate and R. W. Grimes "Combined Monte-Carlo, Energy Minimization Analysis of Al/Fe Disorder in Ca2FeAlO5 Brownmillerite" Philosophical Magazine A 80, 797-807 (2000).
  11. G. S. Collins, L. S.-J. Peng, and M. O. Zacate, "Search for Nucleation of Phase Embryos in Binary Alloys by Impurity Atoms" Zeitschrift für Naturforschung A 55, 129-133 (2000).
  12. M. O. Zacate and G. S. Collins, "Vacancy-Vacancy Interactions in NiAl" Defect and Diffusion Forum 194-199, 383-388 (2001).
  13. G. S. Collins and M. O. Zacate, "Site Preference Model for Hyperfine Impurities in Compounds" Hyperfine Interactions 136(3), 641-646 (2001).
  14. M. O. Zacate, B. C. Walsh, L. S.-J. Peng, and G. S. Collins, "Segregation of Solutes in Two-Phase Mixtures" Hyperfine Interactions 136(3), 653-658 (2001).
  15. M. O. Zacate and G. S. Collins, "Site Preference of Hyperfine Impurities in Ni2Al3 Phases" Hyperfine Interactions 136(3), 647-652 (2001).
  16. M. O. Zacate and R. W. Grimes, "Simulation of Al/Fe Disorder in Ca2FexAl2-xO5" Journal of Physics and Chemistry of Solids 63(4), 677-685 (2002).
  17. M. O. Zacate, G. S. Collins, and L. S.-J. Peng, "Nucleation of Embryos of a Second Phase by Individual Impurity Atoms" Materials Science and Engineering A 329-331C, 920-924 (2002).
  18. G. S. Collins and M. O. Zacate, "Influences of Lattice Sinks and Defect Interactions on Solutes in Compounds" Mat. Res. Soc. Symp. Proc. 719, 460-474 (2002).
  19. R. W. Grimes, K. J. W. Atkinson, M. O. Zacate, M. Pirzada, and C. R. Stanek, "Atomistic Simulation of Materials" in Materials Science and Engineering: Its Nucleation and Growth, M. McLean, ed. (Maney Publishing, London: 2002).
  20. G. S. Collins, L. S.-J. Peng, and M. O. Zacate, "Point Defects in FeAl Studied by Perturbed Angular Correlation" Defect and Diffusion Forum 213-215, 107-131 (2003).
  21. G. S. Collins and M. O. Zacate, "Charge transfer model for quadrupole interactions and binding energies of point defects with 111In/Cd probes in cubic metals" Hyperfine Interactions 151, 77-91 (2003), special volume on the occasion of the 80th birthday of Hendrik de Waard.
  22. M. O. Zacate and G. S. Collins, "Temperature- and Composition- Driven Changes in Site Occupation of Solutes in Gd1+3xAl2-3x" Physical Review B 69, 174202-1 (2004).
  23. M. O. Zacate, A. Favrot, and G. S. Collins, "Atom Movement in In3La Studied Via Nuclear Quadrupole Relaxation" Physical Review Letters 92(22), 225901-1 (2004); Erratum, Physical Review Letters 93(4), 49903-1 (2004).
  24. M. O. Zacate and G. S. Collins, "Composition-Driven Changes in Lattice Sites Occupied by Indium Solutes in Ni2Al3 Phase" Physical Review B 70, 024202-1 (2004).
  25. E. R. Nieuwenhuis, G. S. Collins, A. Favrot, and M. O. Zacate, "High-Temperature Polymorph of In2La" Journal of Alloys and Compounds 387, 20-23 (2005).
  26. G. S. Collins, A. Favrot, L. Kang, D. Solodovnikov, and M. O. Zacate, "Diffusion in Intermetallic Compounds Studied Using Nuclear Quadrupole Relaxation" Defect and Diffusion Forum 237-240 , 195-200 (2005).
  27. M. O. Zacate and G. S. Collins, "Jump Frequency of Cd Tracer Atoms in b-Mn" Defect and Diffusion Forum 237-240 , 396-401 (2005).
  28. E. R. Nieuwenhuis, A. Favrot, L. Kang, M. O. Zacate, and G. S. Collins, "Polymorphic Phase Transformation in In2La and CeIn2" Hyperfine Interactions 158 (1-4), 305-308 (2005).
  29. G. S. Collins, A. Favrot, L. Kang, E. R. Nieuwenhuis, D. Solodovnikov, J. Wang, and M. O. Zacate, "PAC Probes as Diffusion Tracers in Compounds" Hyperfine Interactions 159 (1-4), 1-8 (2005).
  30. M. O. Zacate and W. E. Evenson, "Comparison of XYZ Model Fitting Functions for 111Cd in In3La" Hyperfine Interactions 158(1-4), 329-332 (2005).
  31. J. A. Ball, M. Pirzada, R. W. Grimes, M. O. Zacate, D. W. Price, B. P. Uberuaga, and A. F. Voter, "Predicting Lattice Parameter as a Function of Cation Disorder in MgAl2O4 Spinel" Journal of Physics: Condensed Matter 17(48), 7621-7631 (2005).
  32. A. Chroneos, K. Desai, S. E. Redfern, M. O. Zacate, R. W. Grimes, "New Atomic Scale Simulation Models for Hydroxides and Oxyhydroxides" Journal of Materials Science 41(3), 675-687 (2006).
  33. E. R. Nieuwenhuis, M. O. Zacate, G. S. Collins, "Simultaneous measurement of tracer jump frequencies on different sublattices in Ga7Pd3 using PAC" Defect and Diffusion Forum 264, 27-32 (2007).
  34. H. Muhammed, M. O. Zacate and W. E. Evenson, "Simulation of PAC Spectra for Spin 5/2 Probes Diffusing via a Simple Vacancy Mechanism in Cu3Au-Structured Intermetallic Compounds" Hyperfine Interactions 177(1-3), 45-49 (2007).
  35. M. O. Zacate and W. E. Evenson, "Stochastic Models of Hyperfine Interactions in Nonequilibrium: An Examination of the XYZ Model with a Trapping-Detrapping Mechanism" Hyperfine Interactions 178(1-3), 57-61 (2007).
  36. X. Jiang, M. O. Zacate, G. S. Collins, "Jump Frequencies of Cd Tracer Atoms in L12 Lanthanide Gallides" Defect and Diffusion Forum 289-292, 725 (2009).
  37. G. S. Collins, X. Jiang, J. P. Bevington, F. Selim, and M. O. Zacate, "Change of Diffusion Mechanism with Lattice Parameter in the Series of Lanthanide Indides having L12 Structure" Physical Review Letters 102(15), 155901 (2009).
  38. M. O. Zacate and W. E. Evenson, "Fluctuating Hyperfine Interactions: Computational Implementation," Hyperfine Interactions 197, 229-232 (2010).
  39. W. E. Evenson and M. O. Zacate, "Dimensionless Coordinates for Simulations and Theory of Hyperfine Interactions in Materials," Hyperfine Interactions 197, 251-254 (2010).
  40. M. O. Zacate, W. E. Evenson, R. Newhouse, and G. S. Collins, "Fitting PAC Spectra with Stochastic Models: PolyPacFit," Hyperfine Interactions 197, 223-227 (2010). 
  41. M. O. Zacate, M. Lape, M. Stufflebeam, and W. E. Evenson, "Modeling complex diffusion mechanisms in L12-structured compounds," Hyperfine Interactions 197, 219- 222 (2010).
  42. M. O. Zacate and W. E. Evenson, "Stochastic Hyperfine Interactions Modeling Library," Computer Physics Communications 182, 1061-1077 (2011).
  43. M. O. Zacate and H. Jaeger, “Perturbed Angular Correlation Spectroscopy – a Tool for the Study of Defects and Diffusion at the Atomic Scale,” Defect and Diffusion Forum 311, 3-38 (2011).
  44. T. Park, J. A. Hodges, C. Moreno, M. Stufflebeam, W. E. Evenson, P. Matheson, M. O. Zacate, and G. S. Collins, “Relating PAC Damping to EFG Fluctuation Rates through the PAC Relaxation Peak,” Hyperfine Interactions 199(1-3), 397-402 (2011).
    Home Page of Matthew Zacate
    Department of Physics and Geology
    Northern Kentucky University
    Page last updated in Jan. of 2012. 
    Material on this page does not necessarily reflect the views of the acknowledged funding agencies and of Northern Kentucky University (disclaimer).  Indeed, if something is found to be controversial, it may not necessarily reflect the views of the author.  Copyright (C) 2009 Matthew O. Zacate.