ne-dimensional Anderson model with dichotomic correlation

KAYA T.

EUROPEAN PHYSICAL JOURNAL B, cilt.60, sa.3, ss.313-318, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 60 Sayı: 3
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1140/epjb/e2007-00356-3
  • Dergi Adı: EUROPEAN PHYSICAL JOURNAL B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.313-318
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

A one-dimensional diagonal tight binding electronic system with dichotomic correlated disorder is investigated. The correlation of random potential exponentially decays with distance and also with the dichotomic correlation parameter lambda. Using a appropriate approximation, an analytical transmission coefficient expression is obtained. The obtained analytical expression is then tested against the result of the direct numerical computation of the average transmission coefficient < T > for the Anderson model, by changing the system parameters. In the thermodynamic limit the transmission coefficient relation indicates the absence of localization-delocalization transition, which is entirely consistent with numerical predictions.