Dispersive and other second-order terms in exciton—phonon coupling

✍ Scribed by D.P. Craig

• Book ID: 103022108
• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 392 KB
• Volume: 88
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(82)83026-1

✦ Synopsis

Analysts of the second-order corrections IO the energy of an clclted molecular crystal shows that there IS an addItIonal couphng between cxcltons and phonons whch may be comparable to the usual resonance couplmg The new term couples even when the rcsonancc term IS small or zero, but dues not contnbute to eyaton band spbtt~n,o.