Temperature-dependent angle-resolved photoemission spectra of TlInSe 2: Manifestations of incommensurate and commensurate phases

Mimura K., Nogami T., Abe K., Wakita K., Arita M., MƏMMƏDOV N., ...daha çox

Japanese Journal of Applied Physics, vol.47, no.10 PART 2, pp.8188-8192, 2008 (SCI-Expanded, Scopus) identifier

  • Nəşrin Növü: Article / Article
  • Cild: 47 Say: 10 PART 2
  • Nəşr tarixi: 2008
  • Doi nömrəsi: 10.1143/jjap.47.8188
  • jurnalın adı: Japanese Journal of Applied Physics
  • Jurnalın baxıldığı indekslər: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Səhifə sayı: pp.8188-8192
  • Açar sözlər: Angle-resolved photoemission spectroscopy, Commensurate phase, Energy band structure, Incommensurate phase, One-dimensional material, TlInSe2
  • Açıq Arxiv Kolleksiyası: Məqalə
  • Adres: Bəli

Qısa məlumat

The energy band structures of the valence band of the TlInSe2 material with a quasi one-dimensional chain structure and a giant Seebeck coefficient at temperatures below 413 K were investigated by angle-resolved photoemission spectroscopy at 280 and 50 K. The obtained energy bands and the calculated band structure were found to correspond well in main futures. A detailed analysis using both experimental and theoretical data was performed and the obtained results were evident of the presence of the incommensurate phase linked to a certain point on the A line of the Brillouin zone of TlInSe 2. A self-consistent picture of the phase transition in TlInSe 2 was drawn after discussion using available data for this material. According to this picture, TlInSe2 at 50 K is already a commensurate material while the incommensurate-commensurate phase transition occurs between 280 and 50 K. © 2008 The Japan Society of Applied Physics.