TY - JOUR
T1 - Semiclassical and quantum polarons in crystalline acetanilide
AU - Hamm, P.
AU - Tsironis, G. P.
N1 - Funding Information:
This work is dedicated to the memory of Al Scott who has been a source of inspiration for us in this and may other problems of nonlinear physics. P.H. acknowledges financial support from the Deutsche Forschungsgemeinschaft (collaborative research center SFB 450) as well as from the Swiss Science Foundation (grants 2100-067573/1 and 200020-107492/1) and GPT acknowledges grant 2006PIV10007 of the Generalitat de Catalunia, Spain. We wish to thank Julian Edler for important contributions to this work.
PY - 2007/8
Y1 - 2007/8
N2 - Crystalline acetanilide is a an organic solid with peptide bond structure similar to that of proteins. Two states appear in the amide I spectral region having drastically different properties: one is strongly temperature dependent and disappears at high temperatures while the other is stable at all temperatures. Experimental and theoretical work over the past twenty five years has assigned the former to a self trapped state while the latter to an extended free exciton state. In this article we review the experimental and theoretical developments on acetanilide paying particular attention to issues that are still pending. Although the interpretation of the states is experimentally sound, we find that specific theoretical comprehension is still lacking. Among the issues that the appear not well understoodis the effective dimensionality of the selftrapped polaron and free exciton states.
AB - Crystalline acetanilide is a an organic solid with peptide bond structure similar to that of proteins. Two states appear in the amide I spectral region having drastically different properties: one is strongly temperature dependent and disappears at high temperatures while the other is stable at all temperatures. Experimental and theoretical work over the past twenty five years has assigned the former to a self trapped state while the latter to an extended free exciton state. In this article we review the experimental and theoretical developments on acetanilide paying particular attention to issues that are still pending. Although the interpretation of the states is experimentally sound, we find that specific theoretical comprehension is still lacking. Among the issues that the appear not well understoodis the effective dimensionality of the selftrapped polaron and free exciton states.
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U2 - 10.1140/epjst/e2007-00215-7
DO - 10.1140/epjst/e2007-00215-7
M3 - Review article
AN - SCOPUS:34548331298
VL - 147
SP - 303
EP - 331
JO - European Physical Journal: Special Topics
JF - European Physical Journal: Special Topics
SN - 1951-6355
IS - 1
ER -