Intrinsic localized modes observed in the high-temperature vibrational spectrum of NaI

M. E. Manley¹, A. J. Sievers², J. W. Lynn³, S. A. Kiselev², N. I. Agladze², Y. Chen^3,4, A. Llobet⁵, and A. Alatas^6
1Lawrence Livermore National Laboratory, Livermore, California 94551, USA
²Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853-2501, USA
³NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
⁴Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, USA
⁵Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
⁶Argonne National Laboratory, Argonne, Illinois 60439, USA