Slow relaxation, confinement, and solitons

Details Slow relaxation, confinement, and solitons Slow relaxation, confinement, and solitons

2001-09-26

arxiv.org/abs/cond-mat/0109483v1

Phys. Rev. Lett. 88, 224101 (2002)

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevLett.88.224101

Millisecond crystal relaxation has been used to explain anomalous decay in doped alkali halides. We attribute this slowness to Fermi-Pasta-Ulam solitons. Our model exhibits confinement of mechanical energy released by excitation. Extending the model to long times is justified by its relation to solitons, excitations previously proposed to occur in alkali halides. Soliton damping and observation are also discussed.

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