Pregled bibliografske jedinice broj: 373994
Raman spectroscopy of collective modes in charge-density-wave systems - the mean-field microscopic theory
Raman spectroscopy of collective modes in charge-density-wave systems - the mean-field microscopic theory // Journal of Raman Spectroscopy, 40 (2009), 4; 442-452 doi:10.1002/jrs.2149 (međunarodna recenzija, članak, znanstveni)
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Naslov
Raman spectroscopy of collective modes in charge-density-wave systems - the mean-field microscopic theory
Autori
Kupčić, Ivan
Izvornik
Journal of Raman Spectroscopy (0377-0486) 40
(2009), 4;
442-452
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
charge-density-wave semiconductors; amplitude oscillations; selection rules; adiabatic approach; mean-field approximation
Sažetak
The electron-mediated coupling of external electromagnetic fields and Raman-active oscillations is derived for a general electronic model with multiple bands using the adiabatic approach and the explicit diagrammatic approach. The theory is illustrated on the quasi-one-dimensional quarter-filled charge-density-wave (CDW) model. It is shown how the long-range Coulomb forces and the single-electron relaxation processes affect the Raman spectroscopy of the amplitude oscillation mode in clean CDW systems. It is also argued that the adiabatic treatment of the photon-phonon coupling functions can be safely used in this case.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
119-1191458-0512 - Niskodimenzionalni jako korelirani vodljivi sustavi (Barišić, Slaven, MZOS ) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
Profili:
Ivan Kupčić
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
