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Disentanglement of the Electronic and Lattice Parts of the Order Parameter in a 1D Charge Density Wave System Probed by Femtosecond Spectroscopy


Schafer, Hanjo; Kabanov, Viktor; Beyer, Markus; Biljakovic, Katica; Demšar, Jure
Disentanglement of the Electronic and Lattice Parts of the Order Parameter in a 1D Charge Density Wave System Probed by Femtosecond Spectroscopy // Physical Review Letters, 105 (2010), 6; 066402-1 doi:10.1103/PhysRevLett.105.066402 (međunarodna recenzija, članak, znanstveni)


Naslov
Disentanglement of the Electronic and Lattice Parts of the Order Parameter in a 1D Charge Density Wave System Probed by Femtosecond Spectroscopy

Autori
Schafer, Hanjo ; Kabanov, Viktor ; Beyer, Markus ; Biljakovic, Katica ; Demšar, Jure

Izvornik
Physical Review Letters (0031-9007) 105 (2010), 6; 066402-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Disentanglement; electronic; lattice; order parameter; charge density wave system; femtosecond spectroscopy

Sažetak
We report on the high resolution studies of the temperature (T) dependence of the q ¼ 0 phonon spectrum in the quasi-one-dimensional charge density wave (CDW) compound K0:3MoO3 utilizing time-resolved optical spectroscopy. Numerous modes that appear below Tc show pronounced T dependences of their amplitudes, frequencies, and dampings. Utilizing the time-dependent Ginzburg-Landau theory we show that these modes result from linear coupling of the electronic part of the order parameter to the 2kF phonons, while the (electronic) CDW amplitude mode is overdamped.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
035-0352827-2842 - Kompleksni modulirani sistemi: nova osnovna stanja, defekti i magnetski efekti (Katica Biljaković, )

Ustanove
Institut za fiziku, Zagreb

Autor s matičnim brojem:
Katica Biljaković, (76732)

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
  • MEDLINE


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