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Al Sievers

E.L. Nichols Professor of Physics, Emeritus

Dynamical properties of intrinsic localized modes are studied in micromechanical arrays, in anharmonic crystals, in electrical transmission lines and in magnetic solids.


The exploration of energy localization in discrete nonlinear lattices, both classical and quantum mechanical, is an ongoing focus.

Collaborators in this research: Nick Agladze, Vladimir Hizhnyakov, John Page, and Masayuki Sato.

Awards and Honors

  • Podell Scholar, 2019
  • Fellow, American Physical Society
  • Fellow, Optical Society of America
  • Member, Cornell Center for Materials Research
  • Member, Center for Radiophysics and Space Research, Cornell University
  • Institute of Physics (London) Kenneth John Button Prize, 1999
  • APS Frank Isakson Prize, 1988
  • Humboldt Senior Scientist, 1985
  • New Zealand Erskine Fellow, 1976
  • NSF Senior Fellow, 1971

Educational Background

  • E. L. Nichols Professor of Physics, Cornell University, 1991-present
  • Director of the Laboratory of Atomic and Solid State Physics, Cornell University, 1995, 1997-2006
  • Visiting appointments at: Stanford University; University of California, Irvine; University of Canterbury, New Zealand; Los Alamos National Laboratory; IBM Research Laboratory, San Jose; Science University of Tokyo; Max Planck Institute, Stuttgart, Germany; Science University of Tokyo; Seoul National University; University of Canterbury, New Zealand; Tohoku University, Japan; Arizona State University
  • Professor, Physics, Cornell University, 1971-91
  • Associate Professor, Physics, Cornell University, 1967-71
  • Assistant Professor, Physics, Cornell, 1964 -67
  • Research Associate, Physics, Cornell University, 1962-64
  • Ph.D., University of California at Berkeley, 1962
  • B.S., Physics, University of California at Berkeley, 1958