M. Matsushita, “Anomalous temperature dependence of the frequency and damping constant of phonons near Tλ in ammonium halides,” Journal of Chemical Physics, Vol. 65, 1976, pp. 23-28. doi:10.1063/1.432804

has been cited by the following article:

• TITLE: Temperature Dependence of the Raman Intensity and the Bandwidth Close to the Order-Disorder Phase Transition in NaNO3

  AUTHORS: Hamit Yurtseven, Sukran Aslan

  KEYWORDS: Raman Intensity; Bandwidth; NaNO3

  JOURNAL NAME: Optics and Photonics Journal, Vol.2 No.3A, September 28, 2012

  ABSTRACT: We analyze the temperature dependence of the Raman intensity using the experimental data according to a power-law formula close to the order-disorder transition (Tc = 549 K) in NaNO 3. From this analysis, we extract the value of β = 0.26 as the critical exponent for the order parameter, which indicates a tricritical phase transition in this crystalline system. Using the temperature dependence of the order parameter, the Raman bandwidth is calculated at various temperatures in NaNO3. Our calculated bandwidths describe adequately the observed behaviour of the order-disorder transition in this crystal.