Multiphonon absorption of alkali halides and quasiselection rules |
| |
| Authors: | JA Harrington CJ Duthler FW Patten M Hass |
| |
| Institution: | University of Alabama in Huntsville, Huntsville, AL 35807, U.S.A.;Xonics, Incorporated, Van Nuys, CA 91406, U.S.A.;U.S. Naval Research Laboratory, Washington, D.C. 20375, U.S.A. |
| |
| Abstract: | A well-defined band has been observed in the low temperature infrared spectrum of KI, KBr, NaI, and RbCl in the region corresponding to the sum of three optical branch phonos and no corresponding band in the two- and four-phonon regions. These results can be accounted for by deducing an odd-even quasiselection rule for crystals having a gap between the optical and acoustical branches of the vibrational spectrum. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
