Infrared Absorption of Pairs of Coupled Local-Mode Oscillators:H−H−,D−D−, andH−D−Pairs in KCl

1973 ◽  
Vol 8 (12) ◽  
pp. 5866-5874 ◽  
Author(s):  
Milton de Souza ◽  
Fritz Lüty
Keyword(s):  
Infrared Absorption ◽  
Local Mode

Infrared Absorption Spectra of C Local Mode in Si1-x-yGexCy Crystals

2001 ◽  
Vol 40 (Part 2, No. 6B) ◽  
pp. L592-L595 ◽  
Author(s):  
Yoshihiko Kanzawa ◽  
Katsuya Nozawa ◽  
Tohru Saitoh ◽  
Minoru Kubo
Keyword(s):  
Absorption Spectra ◽  
Infrared Absorption ◽  
Local Mode ◽  
Infrared Absorption Spectra

Infrared absorption due to H− ions in sodium and potassium halides. I. Anharmonic side bands of the local mode

1970 ◽  
Vol 48 (18) ◽  
pp. 2176-2187 ◽  
Author(s):  
R. W. MacPherson ◽  
T. Timusk
Keyword(s):  
Neutron Scattering ◽  
Shell Model ◽  
Infrared Absorption ◽  
Local Mode ◽  
Sodium Halides ◽  
Sodium And Potassium ◽  
Potassium Halides

New measurements and calculations of the side bands of the local-mode absorption of H− ions in the infrared are presented for the potassium and sodium halides. Some new features are observed and a shell model for the defect along with phonon data determined from neutron scattering experiments is used to satisfactorily explain the observed spectra.

Infrared Absorption and Anharmonicity of the U-Centre Local Mode. I. Experiments

1965 ◽  
Vol 11 (1) ◽  
pp. 231-239 ◽  
Author(s):  
B. Fritz ◽  
U. Gross ◽  
D. Bäuerle
Keyword(s):  
Infrared Absorption ◽  
Local Mode ◽  
Mode I

Infrared absorption due to H− ions in sodium and potassium halides. II. Impurity induced absorption in the far-infrared region

1970 ◽  
Vol 48 (24) ◽  
pp. 2917-2929 ◽  
Author(s):  
R. W. MacPherson ◽  
T. Timusk
Keyword(s):  
Absorption Spectrum ◽  
Density Of States ◽  
Infrared Absorption ◽  
Far Infrared ◽  
Infrared Region ◽  
Local Mode ◽  
Defect Model ◽  
Side Band ◽  
Sodium And Potassium ◽  
Potassium Halides

Measurements and calculations of the impurity induced far-infrared absorption due to H− ions in the sodium and potassium halides are presented. The defect model which was previously determined from theoretical fits to experimental local mode and anharmonic side band data is used to predict the absorption spectrum in the far-infrared region below the reststrahlen frequency. The agreement with the observed absorption spectra is good. It is shown that certain features may be interpreted as Van Hove singularities in the unperturbed density of states of the host crystals and that other peaks in the KBr and KI spectra are due to localized resonances.

Sign in / Sign up

Export Citation Format

Share Document