Cornell Applied and Engineering Physics AEP Graduate Research

Welcome to the Muller lab! Our electron microscopy research at Cornell University is focused on understanding the behavior of materials and devices at the atomic scale, with an emphasis on sustainable energy applications. Using some of the most powerful electron microscopes in the world, placed in specially-designed and environmentally isolated rooms, we are able to explore the chemistry, electronic structure and bonding inside objects as diverse as transistors, fuel cells, and two-dimensional superconductors. All of these systems are made up of different materials, and where they join at the atomic scale, the boundary conditions on the quantum mechanical wavefunctions force very different behavior from what might be expected of the bulk materials. At these boundaries, where everyday intuition breaks down, we are searching for new and unexpected phases and physics. The impact of this research on devices, both large and small, could be significant.

If you enjoy both physics theory and experiment, can think in both real and reciprocal space, and care about both why things are and what they might be used for, then this is the research group for you!

For more information about David A. Muller's AEP research group at Cornell University, contact:

School of Applied and Engineering Physics
Cornell University
227 Clark Hall
NY 14853-3501274

Phone: 607-255-4065
Email: David Muller

Featured Publications

 Y. Jiang, Z. Chen, Y. Han, P. Deb, H. Gao, S. Xie, P. Purohit, M. W. Tate, J. Park, S. M. Gruner, V. Elser, and D. A. Muller. “Electron Ptychography of 2D Materials to Deep Sub-Ångström Resolution” Nature 559, no. 7714 (2018): 343–349. doi:10.1038/s41586-018-0298-5.

J. A. Mundy, Y. Hikita, T. Hidaka, T. Yajima, T. Higuchi, H. Y. Hwang, D. A. Muller, and L. F. Kourkoutis, "Visualizing the interfacial evolution from charge compensation to metallic screening across the manganite metal–insulator transition". Nat Commun 5 3464.1-6 (2014) doi:10.1038/ncomms4464

M. E. Holtz, Y. Yu, D. Gunceler, J. Gao, R. Sundararaman, K. A. Schwarz, T. A. Arias, H. D. Abruña, and D. A. Muller, "Nanoscale Imaging of Lithium Ion Distribution During In Situ Operation of Battery Electrode and Electrolyte". Nano Letters (2014).   DOI: 10.1021/nl404577c

"Imaging Atomic Rearrangements in Two-Dimensional Silica Glass: Watching Silica’s Dance",

Pinshane Y. Huang, Simon Kurasch, Jonathan S. Alden, Ashivni Shekhawat, Alexander A. Alemi, Paul L. McEuen, James P. Sethna, Ute Kaiser, and David A. Muller, Science, 342, 224-227 (2013).

"Direct Imaging of a Two-Dimensional Silica Glass on Graphene", Pinshane Y Huang, Simon Kurasch, Anchal Srivastava, Viera Skakalova, Jani Kotakoski, Arkady V. Krasheninnikov, Robert Hovden, Qingyun Mao, Jannik C. Meyer, Jurgen H. Smet, David A. Muller, and Ute Kaiser, Nano Lett. 12 1081-1086 (2012). DOI: 10.1021/nl204423x