Yejun Feng

Argonne National Laboratory
9700 S. Cass Ave
Argonne, Il 60439

Phone: 252-7780

Fax: 252-7392



  • 2007 - present:   Assistant Physicist, X-ray Science Division, Argonne National Laboratory, Argonne, IL
  • 2003-2007:   Postdoctoral Research Associate, University of Chicago, Chicago, IL.

  • University of Washington, Department of Physics, Seattle, WA; Ph.D.-Physics, 2003.
  • The City College of New York - CUNY, New York, NY; M.A. Physics, 1999.
  • Fudan Univerisity, Shanghai, China; B.S.-Physics, 1996.

Research Interests:

  • Magnetism and correlated electron systems
  • Pressure induced quantum phase transitions
  • Single crystal diffractions

Selected Publications:

  1. "Order parameter fluctuations at a buried quantum critical point,"
    Y. Feng, J. Wang, R. Jaramillo, J. van Wezel, S. Haravifard, G. Srajer, Y. Liu, Z.-A. Xu, P.B. Littlewood, T.F. Rosenbaum, Proc. Natl. Acad. Sci. USA  109, 7224 (2012).
  2. "Pressure tuning of competing magnetic interactions in intermetallic CeFe2,"
    J. Wang, Y. Feng, R. Jaramillo, J. van Wezel, P.C. Canfield, T.F. Rosenbaum, Phys. Rev. B  86, 014422 (2012).
  3. "Magnetism, structure, and charge correlation at a pressure-induced Mott-Hubbard insulator-metal transition,"
    Y. Feng, R. Jaramillo, A. Banerjee, J.M. Honig, T.F. Rosenbaum, Phys. Rev. B  83, 035106 (2011).
  4. "High-pressure techniques for condensed matter physics at low temperature,"
    Y. Feng, R. Jaramillo, J. Wang, Yang Ren, T.F. Rosenbaum, Rev. Sci. Instrum.  81, 041301 (2010).
  5. "Breakdown of the Bardeen–Cooper–Schrieffer ground state at a quantum phase transition,"
    R. Jaramillo, Y. Feng, J. C. Lang,Z. Islam, G. Srajer, P.B. Littlewood, D.B. McWahn, T.F. Rosenbaum, Nature 459, 405 (2009).
  6. “Chromium at high pressures: Weak coupling and strong fluctuations in an itinerant antiferromagnet”,
    R. Jaramillo, Y. Feng, J.C. Lang, Z. Islam, G. Srajer, H.M. Ronnow, P.B. Littlewood, T.F. Rosenbaum, Phys. Rev. B 77, 184418 (2008).
  7. "Pressure-tuned spin and charge ordering in an itinerant antiferromagnet",
    Y. Feng, R. Jaramillo, G. Srajer, J.C. Lang, Z. Islam, M.S. Somayazulu, O.G. Shpyrko, J.J. Pluth, H.-K. Mao, E.D. Isaacs, and G. Aeppli, T.F. Rosenbaum, Phys. Rev. Lett. 99, 137201 (2007).
  8. "Direct Measurement of Antiferromagnetic Domain Fluctuations",
    O. G. Shpyrko, E. D. Isaacs, J. M. Logan, Yejun Feng, G. Aeppli, R. Jaramillo, H. C. Kim, T. F. Rosenbaum, P. Zschack, M. Sprung, S. Narayanan, A.R. Sandy,Nature 447, 68 (2007).
  9. "Quantum and Classical Relaxation in the Proton Glass",
    Yejun Feng, C. Ancona-Torres, T. F. Rosenbaum, G. F. Reiter, D. L. Price, E. Courtens, , Phys. Rev. Lett. 97, 145501 (2006).
  10. "Role of inversion symmetry and multipole effects in non-resonant x-ray Raman scattering from icosahedral B4C",
    Yejun Feng, G. T. Seidler, J. O. Cross, A. T. Macrander, J. J. Rehr, Phys. Rev. B 69, 125402 (2004).


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