Jacob Ruff

Argonne National Laboratory
9700 S. Cass Ave
432/B003
Argonne, Il 60439

Phone: 630-252-0243

Fax: 630-252-0240

E-Mail: jpcruff@aps.anl.gov

Education/Experience:

  • 2010 - Present: Director's Postdoctoral Fellow, Argonne National Lab
  • McMaster University, PhD in Physics, 2010
  • University of Waterloo, BSc. in Physics, 2004

Research Interests:

  • Understanding spin-lattice coupling in quantum magnets, primarily by performing x-ray scattering in high magnetic fields.

Selected Publications:

  1. Magnetoelastics of a Spin Liquid: X-Ray Diffraction Studies of Tb2Ti2O7 in Pulsed Magnetic Fields
    J.P.C. Ruff, Z. Islam, J.P. Clancy, K.A. Ross, H. Nojiri, Y.H. Matsuda, H.A. Dabkowska, A.D. Dabkowski, B.D. Gaulin
    , Phys. Rev. Lett. 105, 077203 (2010)
  2. A portable high-field pulsed-magnet system for single-crystal x-ray scattering studies
    Z. Islam, J.P.C. Ruff, H. Nojiri, Y.H. Matsuda, K.A. Ross, B.D. Gaulin, Z. Qu, and J.C. Lang, Rev. Sci. Instrum. 80, 113902 (2009)
  3. Two dimensional kagome correlations and field induced order in the ferromagnetic XY pyrochlore Yb2Ti2O7
    K.A. Ross, J.P.C. Ruff, C.P. Adams, J.S. Gardner, H.A. Dabkowska, Y. Qiu, J.R.D. Copley and B.D. Gaulin, Phys. Rev. Lett. 103 227202 (2009)
  4. Revisiting static and dynamic spin-ice correlations in Ho2Ti2O7 with neutron scattering
    J.P. Clancy, J.P.C. Ruff, S.R. Dunsiger, Y. Zhao, H.A. Dabkowska, J.S. Gardner, Y. Qiu, J.R.D. Copley, T. Jenkins and B.D. Gaulin, Phys. Rev. B 79, 014408 (2009)
  5. Spin waves and quantum criticality in the frustrated XY pyrochlore antiferromagnet Er2Ti2O7
    J.P.C. Ruff, J.P. Clancy, A. Bourque, M.A. White, M. Ramazanoglu, J.S. Gardner, Y. Qiu, J.R.D. Copley, M.B. Johnson, H.A. Dabkowska and B.D. Gaulin, Phys. Rev. Lett. 101, 147205 (2008)
  6. Polarized inelastic neutron scattering of the partially ordered Tb2Sn2O7
    K.C. Rule, G. Ehlers, J.R. Stewart, A.L. Cornelius, P.P. Deen, Y. Qiu, C.R. Wiebe, J.A. Janik, H.D. Zhou, D. Antonio, B.W. Woytko, J.P.C. Ruff, B.D. Gaulin and J.S. Gardner, Phys. Rev. B 76, 212405 (2007)
  7. Structural fluctuations in the spin-liquid state of Tb2Ti2O7
    J.P.C. Ruff, B.D. Gaulin, J.P. Castellan, K.C. Rule, J.P. Clancy, J. Rodriguez and H.A. Dabkowska, Phys. Rev. Lett. 99, 237202 (2007)
  8. High-resolution x-ray scattering studies of structural phase transitions in underdoped La2−xBaxCuO4
    Y. Zhao, B.D. Gaulin, J.P. Castellan, J.P.C. Ruff, S.R. Dunsiger, G.D. Gu and H.A. Dabkowska, Phys. Rev. B 76, 184121 (2007)
  9. Field-Induced Order and Spin Waves in the Pyrochlore Antiferromagnet Tb2Ti2O7
    K.C. Rule, J.P.C. Ruff, B.D. Gaulin, S.R. Dunsiger, J.S. Gardner, J.P. Clancy, M.J. Lewis, H.A. Dabkowska, I. Mirebeau, P. Manuel, Y. Qiu, and J.R.D. Copley, Phys. Rev. Lett. 96, 177201 (2006)
  10. Finite-Temperature Transitions in Dipolar Spin Ice in a Large Magnetic Field
    Jacob P.C. Ruff, Roger G. Melko, and Michel J.P. Gingras, Phys. Rev. Lett. 95, 097202 (2005)

Posted by: Becki Gagnon ( gagnon@aps.anl.gov)
Content by: Jacob Ruff ( jpcruff@aps.anl.gov)