Anharmonicity of Lattice Vibrations in Bi 2 Se 3 Single Crystals

Badalova Z., Abdullayev N., Azhdarov G., Aliguliyeva K. V., Gahramanov S. S., Nemov S., ...daha çox

Semiconductors, vol.53, no.3, pp.291-295, 2019 (SCI-Expanded, Scopus) identifier

  • Nəşrin Növü: Article / Article
  • Cild: 53 Say: 3
  • Nəşr tarixi: 2019
  • Doi nömrəsi: 10.1134/s1063782619030035
  • jurnalın adı: Semiconductors
  • Jurnalın baxıldığı indekslər: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Səhifə sayı: pp.291-295
  • Açıq Arxiv Kolleksiyası: Məqalə
  • Adres: Bəli

Qısa məlumat

Abstract: The temperature dependences of the Raman-active frequencies E g 2 A1g in layered Bi 2 Se 3 single crystals are studied. The contribution of the thermal expansion to a temperature variation in the frequencies is determined. The decay of the anisotropy of the elastic properties in layered Bi 2 Se 3 single crystals due to strong spin–orbit coupling is shown. The Gruneisen-mode parameters for phonons E g 2 are calculated. Systematic features in the dependences of vibrational frequencies on the atomic masses in layered Bi 2 Te 3 , Bi 2 Se 3 , and Sb 2 Te 3 single crystals are determined.