Перегляд за автором "Yeremenko, A.V."

Сортувати за: Порядок: Результатів:

  • Electronic Raman scattering through a stripe ordering transition in La₂₋xSrxNiO₄ 
    Gnezdilov, V.P.; Pashkevich, Yu. G.; Yeremenko, A.V.; Lemmens, P.; Güntherodt, G.; Tranquada, J.M.; Buttrey, D.J.; Nakajima, K. (Физика низких температур, 2002)
    We describe the results of electronic Raman scattering experiments in two differently doped single crystals of La₂₋xSrxNiO₄ (x=0.225 and 1/3). In B₁g symmetry a crossover from weakly interacting to pseudogap-like behavior ...
  • Light scattering on phonons in quasi-one-dimensional antiferromagnet CsFeCl₃·2H₂O induced by magnetic ordering 
    Kurnosov, V.S.; Pashkevich, Yu. G.; Peschanskii, A.V.; Fomin, V.I.; Yeremenko, A.V. (Физика низких температур, 2002)
    The appearance of new phonon lines in the Raman spectrum of the quasi-one-dimensional antiferromagnet CsFeCl₃·2H₂O as a consequence of magnetic ordering with a change of the unit cell volume was detected experimentally. ...
  • Low temperature mixed spin state of Co³⁺ in LaCoO₃ evidenced from Jahn–Teller lattice distortions 
    Gnezdilov, V.; Choi, K.-Y.; Pashkevich, Yu.; Lemmens, P.; Shiryaev, S.; Bychkov, G.; Barilo, S.; Fomin, V.; Yeremenko, A.V. (Физика низких температур, 2006)
    One- and multi-phonon excitations of the single crystalline LaCoO₃ were studied using Raman spectroscopy in the temperature region of 5–300 K. First-order Raman spectra show a larger number of phonon modes than allowed ...
  • Phonon Raman scattering in LaMn₁₋xCoxO₃ (x = 0, 0.2, 0.3, 0.4, and 1.0) 
    Gnezdilov, V.P.; Pashkevich, Yu.G.; Yeremenko, A.V.; Lemmens, P.; Guntherodt, G.; Shiryaev, S.V.; Bychkov, G.L.; Barilo, S.N. (Физика низких температур, 2003)
    The Raman-active phonons in perovskite-like LaMn₁–xCoxO₃ (x = 0, 0.2, 0.3, 0.4, and 1.0) were studied by measuring Raman spectra at temperatures of 295 and 5 K. The changes in the spectra with Co doping are correlated with ...
  • Raman scattering in LiNiPO₄ single crystal 
    Fomin, V.I.; Gnezdilov, V.P.; Kurnosov, V.S.; Peschanskii, A.V.; Yeremenko, A.V.; Schmid, H.; Rivera, J.-P.; Gentil, S. (Физика низких температур, 2002)
    The complete Raman spectra of a single crystal of LiNiPO₄ for a wide temperature range are reported. Among the 36 Raman-active modes predicted by group theory, 33 have been detected. The analysis of the spectra in terms ...