Far-Infrared Reflection Spectra of CsCl Single Crystals

Hiroyasu Shimizu; Yoshikazu Ohbayashi; Keiichi Yamamoto; Kenji Abe; Michio Midorikawa; Yoshihiro Ishibashi

doi:10.1143/JPSJ.39.448

Journal of the Physical Society of Japan

Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015

Far-Infrared Reflection Spectra of CsCl Single Crystals

Hiroyasu Shimizu, Yoshikazu Ohbayashi, Keiichi Yamamoto, Kenji Abe, Michio Midorikawa, Yoshihiro Ishibashi

著者情報

ジャーナル認証あり

1975 年 39 巻 2 号 p. 448-450

DOI https://doi.org/10.1143/JPSJ.39.448

詳細

抄録

Far-infrared reflectivity measurements have been made at room temperature for CsCl single crystals obtained by the melt-growth under high pressure. The reflection spectra have been analyzed using Kramers-Kronig relation and the classical two oscillator model, and optical constants (n, k) are calculated. The sideband structure has been clearly observed near 140cm⁻¹, which is discussed by considering the relaxation of the resonant TO phonon anharmonically coupled with two other phonons.