Pregled bibliografske jedinice broj: 927754
RPA Approach to Phonon Excitation Spectrum of MX-Compounds
RPA Approach to Phonon Excitation Spectrum of MX-Compounds // Bulletin of Americal Physical Society
Cincinnati (OH), Sjedinjene Američke Države: American Physical Society, 1991. str. 783-783 (predavanje, nije recenziran, sažetak, znanstveni)
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Naslov
RPA Approach to Phonon Excitation Spectrum of MX-Compounds
Autori
Batistić, I. ; Bishop, A.R.
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Bulletin of Americal Physical Society
/ - : American Physical Society, 1991, 783-783
Skup
APS March meeting
Mjesto i datum
Cincinnati (OH), Sjedinjene Američke Države, 18.03.1991. - 22.03.1991
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Nije recenziran
Ključne riječi
RPA, Phonons, IR, Raman
Sažetak
The phonon spectra of doped and undoped halogen bridged transition metal (MX) complexes are studied by using a random phase approximation (RPA) for inhomogeneous mean field structures. We find the existence of both local and extended phonon modes associated with (bi)polaron or kink formation in intrinsically and extrinsically doped systems. The corresponding infrared absorption spectrum and Raman spectrum (as a function of the excitation energy) are also calculated. We find that the local phonon modes exhibit strong resonance Raman scattering for certain excitation energies corresponding to electronic gap states. These results are discussed and compared with the experimental data on MX compounds.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
