Welcome to the website of the lab of Charles H. Ahn, William K. Lanman Jr. Professor of Applied Physics, Physics and of Mechanical Engineering and Materials Science



The Ahn Lab is a research group affiliated with the Department of Applied Physics at Yale University and the Center for Research on Interface Structures and Phenomena (CRISP), a National Science Foundation Materials Research Science and Engineering Center (NSF-MRSEC). The lab investigates the electronic and magnetic properties of strongly correlated oxide materials.

Lab Openings

The Ahn laboratory is currently accepting applications for post-doctoral positions. Interested candidates may send a CV to halima.chahboune@yale.edu


Lab News


Solid-State Physics: Engineering a copper oxide look-alikePhys. Rev. Lett. 10.1103/PhysRevLett.114.026801 (2015).

Selected Publications

A. Disa, D. Kumah, A. Malashevich, H. Chen, D. Arena, E. Specht, S. Ismail-Beigi, F. J. Walker, and
C. H. Ahn, Orbital engineering in symmetry-breaking polar heterostructures. Physical Review Letters,
114, 026801, 2015. DOI: 10.1103/PhysRevLett.114.026801

I. Bozovic, and C. H. Ahn, A new frontier for superconductivity. Nature Physics, 10, 892, 2014.
DOI: 10.1038/nphys3177

 M. G. Han, M. Marshall, L. Wu, M. Schofield, T. Aoki, R. Twesten, J. Hoffman, F. J. Walker, C. H.
Ahn, and Y. Zhu, Interface-induced nonswitchable domains in ferroelectric thin films. Nature
Communications 5, 4693. 2014. DOI: 10.1038/ncomms5693

D. Kumah, A. Disa, J. Ngai, H. Chen, A. Malashevich, J. W. Reiner, S. Ismail-Beigi, F. J. Walker, and
C. H. Ahn, Tuning the structure of nickelates to achieve two-dimensional electron conduction.
Advanced Materials, 26, 1935, 2014. DOI: 10.1002/adma.2013042562014

H. Chen, Q. Qiao, M. Marshall, A. Georgescu, A. Gulec, P. Phillips, R. Klie, F. J. Walker, C. H. Ahn,
and S. Ismail-Beigi, Reversible Modulation of Orbital Occupations via an Interface-Induced Polar
State in Metallic Manganites. Nano Letters, 14(9), 4965, 2014. DOI: 10.1021/nl501209p

C. Xiong, W. Pernice, J. Ngai, J. W. Reiner, D. Kumah, F. J. Walker, C. H. Ahn, and H. Tang, Active
silicon integrated nanophotonics: ferroelectric BaTiO3 devices. Nano Letters, 14(3), 1419, 2014.
DOI: 10.1021/nl404513p

J. Ngai, F. Walker and C. Ahn, Correlated Oxide Physics and Electronics. Annual Review of
Materials Research, 44, 1, 2014. DOI: 10.1146/annurev‐matsci‐070813‐113248

H. Chen, D. Kumah, A. Disa, F. J. Walker, C. H. Ahn, and S. Ismail-Beigi, Modifying the Electronic
Orbitals of Nickelate Heterostructures via Structural Distortions. Physical Review Letters 110(18),
186402, 2013. DOI: 10.1103/PhysRevLett.110186402


The publication of the book Physics of Ferroelectrics: A Modern Perspective, and the cover of Advanced Materials in 2010.

Cover of Advanced Materials Cover of Advanced Materials Cover of Physics of Ferroelectrics

Contact us

   Department of Applied Physics
   Yale University
   Becton Center
   P.O. Box 208284
   New Haven, CT 06520-8284
   Phone: (203) 432-4273 (Maria Rao)
   Fax: (203) 432-7044