1 Ocak 2003 Dergi makalesi Açık Erişim

Mitani, T; Naitou, T; Matsuishi, K; Onari, S; Allakhverdiev, K; Gashimzade, F; Kerimova, T

Citation Style Language JSON

{
  "DOI": "10.1002/pssb.200301579", 
  "abstract": "The Raman scattering spectra of CdGa2Se4 under pressure were investigated at 300 K up to 20.9 GPa. TO as well as LO modes were observed. Two stages were observed in the pressure dependences of Raman bands. Such a behaviour was attributed to the order-disorder phase transition in the cation sublattice. A first-order phase transition under pressure was observed at 20.2 GPa. Using the Harrison-Keating model of the lattice dynamics modified for crystals with the tetragonal structure, the bulk modulus B and the mode-Gruneisen parameters Gamma(i) were determined for the first time. It is shown that a better agreement between the experimental and calculated values of Gamma(i) is observed if one takes into consideration the different behaviour with pressure for the bond-bending and the bond-stretching parameters, which determine the low-(lower than 140 cm(-1)) and high-(higher than 140 cm(-1)) frequency phonons, respectively.", 
  "author": [
    {
      "family": "Mitani", 
      "given": " T"
    }, 
    {
      "family": "Naitou", 
      "given": " T"
    }, 
    {
      "family": "Matsuishi", 
      "given": " K"
    }, 
    {
      "family": "Onari", 
      "given": " S"
    }, 
    {
      "family": "Allakhverdiev", 
      "given": " K"
    }, 
    {
      "family": "Gashimzade", 
      "given": " F"
    }, 
    {
      "family": "Kerimova", 
      "given": " T"
    }
  ], 
  "container_title": "PHYSICA STATUS SOLIDI B-BASIC RESEARCH", 
  "id": "95153", 
  "issue": "2", 
  "issued": {
    "date-parts": [
      [
        2003, 
        1, 
        1
      ]
    ]
  }, 
  "page": "321-325", 
  "title": "Raman scattering in CdGa2Se4 under pressure", 
  "type": "article-journal", 
  "volume": "235"
}