Joseph George Checkelsky

Assistant Professor of Physics

EMAIL: checkelsky@mit.edu

PHONE: (617) 324-7762

OFFICE: 13-2074

ASSISTANT: Monica Wolf (617) 253-4829


Area of Physics:

Condensed Matter Experiment

Research Interests

Research in Checkelsky lab focuses on the study of exotic electronic states of matter through the synthesis, measurement, and control of solid state materials. Of particular interest are studies of correlated behavior in topologically non-trivial materials, the role of geometrical phases in electronic systems, and novel types of geometric frustration. These studies aim to uncover new physical phenomena that expand the boundaries of understanding of quantum mechanical condensed matter systems and also to open doorways to new technologies by realizing emergent electronic and magnetic functionalities.

The experimental approach of the laboratory is to work at the intersection of fundamental solid state physics, solid state chemistry, and nanoscience. Techniques range from transport and thermodynamic measurements to melt and vapor growth methods to nanoscale probe and device fabrication. We aim to generate an active feedback between these methodologies to incisively probe the fundamental physics of interest.

Biographical Sketch

Professor Checkelsky joined the Department of Physics at MIT in January 2014. He received his B.S. in Physics in 2004 from Harvey Mudd College and Ph. D in Physics in 2010 from Princeton University. Before coming to MIT, Professor Checkelsky did postdoctoral work at Japan’s Institute for Physical and Chemical Research (RIKEN) and held the position of lecturer at the University of Tokyo.

Selected Publications

  • "Dirac-fermion-mediated ferromagnetism in a Topological Insulator", J. G. Checkelsky, J. T. Ye, Y. Onose, Y. Iwasa, Y. Tokura. Nature Physics 8, 729 (2012).
  • "Thermal Hall Conductivity as a Probe of Gap Structure in Multi-band Superconductors: The Case of Ba1-xKxFe2As2", J. G. Checkelsky, R. Thomale, Lu Li, G. F. Chen, J. L. Luo, N. L. Wang, N. P. Ong. Phys. Rev. B 86, 180502(R) (2012).
  • "Bulk Band Gap and Surface State Conduction Observed in Voltage-Tuned Crystals of the Topological Insulator Bi2Se3", J. G. Checkelsky, Y. S. Hor, R. J. Cava, N. P. Ong. Phys. Rev. Lett. 106, 196801 (2011).
  • "Quantum interference in macroscopic crystals of non-metallic Bi2Se3", J. G. Checkelsky, Y. S. Hor , M.-H. Liu, D.-X. Qu, R. J. Cava, N. P. Ong. Phys. Rev. Lett. 103, 246601 (2009).
  • "The thermopower and Nernst Effect in graphene in a magnetic field", J. G. Checkelsky, N. P. Ong. Phys. Rev. B 80, 081413(R) (2009).
  • "Divergence of the resistance of graphene at the Dirac point to 40 MΩ in a strong magnetic field", J. G. Checkelsky, Lu Li, N. P. Ong. Phys. Rev. B 79, 115434 (2009).
  • "The zero-energy state in graphene in a high magnetic field", J. G. Checkelsky, Lu Li, N. P. Ong. Phys. Rev. Lett. 100, 206801 (2008).
  • "Phase transitions of Dirac electrons in bismuth", Lu Li, J. G. Checkelsky, Y.S. Hor, C. Uher, A. F. Hebard, R. J. Cava, N. P. Ong. Science 321, 547 (2008).

Last updated on March 4, 2015 2:20 PM