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APS » Journals » Phys. Rev. Lett. » Volume 82 » Issue 16
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Phys. Rev. Lett. 82, 3288–3291 (1999)

Observation of Intrinsically Localized Modes in a Discrete Low-Dimensional Material

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B. I. Swanson*, J. A. Brozik, S. P. Love, G. F. Strouse, and A. P. Shreve†
Chemical Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

A. R. Bishop and W.-Z. Wang
Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

M. I. Salkola
NHMFL and Department of Physics, Florida State University, Tallahassee, Florida 32310

Received 22 July 1998; published in the issue dated 19 April 1999

We report the experimental observation of intrinsic dynamically localized vibrational states in crystals of the highly nonlinear halide-bridged mixed-valence transition metal complex {[Pt(en)2][Pt(en)2Cl2](ClO4)4}, where en = ethylenediamine. These states are identified by the distinctive structure and strong redshifts they impose upon the overtone resonance Raman spectra. Quantitative modeling of the observed redshifts is presented based on a nonadiabatic coupled electron-lattice model that self-consistently predicts strong nonlinearity and highly localized multiquanta bound states.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.82.3288
DOI:
10.1103/PhysRevLett.82.3288
PACS:
63.20.Kr, 63.20.Pw, 63.20.Ry, 63.22.+m

*Authors to whom correspondence should be addressed. Electronic addresses: basil@lanl.gov and shreve@lanl.gov

†

 
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