Skip to main content

Charudatta M. Phatak

Materials Scientist

Biography

Research Interests

  • Understanding domain behavior and interactions in ferromagnetic heterostructures at the mesoscale using in-situ Lorentz transmission electron microscopy.
  • Phase retrieval and 3D tomographic reconstructions of scalar and vector fields for TEM.
  • Image simulation for TEM as well as development of integrated imaging approach for TEM and X-ray microscopy.

Education

  • Ph.D - 2009, Materials Science Engineering,
    Carnegie Mellon University, Pittsburgh, PA, USA
  • M. Tech – 2005 (Ceramics and Composites),
    Metallurgical and Materials Science Engineering,
    Indian Institute of Technology, Bombay, India
  • B. Tech – 2004,
    Metallurgical and Materials Science Engineering,
    Indian Institute of Technology, Bombay, India

Awards

  • Awarded the Early Career Award from joint Institute of Sustainability and Energy at Northwestern-Argonne to perform research on electrostatic potential mapping using electron microscopy, June 2015.
  • Awarded equipment grant from Materials Science Division (ANL) to upgrade Lorentz TEM for achieving excellent scientific goals, June 2014.
  • Awarded fellowship on international cooperation by Univ. of Paul Sabatier, Toulouse on Combining Vector Field Tomography using off-axis and in-line holography”, September 2012.
  • Awarded the Presidential Student award for outstanding research work by the Microscopy Society of America, August 2008.

Selected Publications

  • X. Yang, F. De Carlo, C. Phatak, and D. Gürsoy, A convolutional neural network approach to calibrating the rotation axis for X-ray computed tomography,” J. Synchrotron Radiat.24 (2), 469475 (2017).
  • S. Zhang, A. K. Petford-Long, and C. Phatak, Creation of artificial skyrmions and antiskyrmions by anisotropy engineering,” Sci. Rep.6, 31248 (2016).
  • V. Brajuskovic, F. Barrows, C. Phatak, and A. K. Petford-Long, Real-space observation of magnetic excitations and avalanche behavior in artificial quasicrystal lattices,” Sci. Rep.6, 34384 (2016).
  • C. Phatak, O. Heinonen, M. De Graef, and A. Petford-Long, Nanoscale skyrmions in a non-chiral metallic multiferroic: Ni2MnGa,” Nano Lett.16(7), 41414148 (2016).
  • C. Phatak, A. K. Petford-Long, and M. De Graef, Recent advances in Lorentz microscopy,” Curr. Opin. Solid State Mater. Sci.20 (2), 107114 (2016).
  • C. Phatak, L. de Knoop, F. Houdellier, C. Gatel, M. J. Hÿtch, A. Masseboeuf, Quantitative 3D electromagnetic field determination of 1D nanostructures from single projection.” Ultramicroscopy164, 2430 (2016).
  • C. Phatak and D. Gürsoy, Iterative reconstruction of magnetic induction using Lorentz transmission electron tomography.,” Ultramicroscopy, 5464 (2015).
  • Y. Choi et al., Enhancement of Local Piezoresponse in Polymer Ferroelectrics via Nanoscale Control of Microstructure,” ACS Nano9 (2), 18091819 (2015).
  • C. Phatak, A. K. Petford-Long, H. Zheng, J. F. Mitchell, S. Rosenkranz, and M. R. Norman, Ferromagnetic domain behavior and phase transition in bilayer manganites investigated at the nanoscale,” Phys. Rev. B92, 224418 (2015).
  • S. Hong, S. H. Chang, C. Phatak, B. Magyari-Kope, Y. Nishi, S. Chattopadhyay, J. H. Kim, Mechanism Study of Reversible Resistivity Change in Oxide Thin Film,” ECS Trans., 69 (3), 5155 (2015). 

Professional Activities

  • Programming committee member for 21st International Conference on Magnetism, San Francisco, 2018
  • Programming committee member for Annual Magnetism and Magnetic Materials Conference, New Orleans, LA, October 2016.
  • Co-organizer of a symposium on Driving Discovery: Integration of multi-modal imaging and data analysis” at the Annual TMS conference, Feb 2016.
  • IEEE Chicago Section, Students Activities Chair, 2015 - present.