Theoretical investigation of the effect of sample properties on the electron velocity in quantum Hall bars
Physical Review B - Condensed Matter and Materials Physics, cilt.76, sa.7, 2007 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 76 Sayı: 7
- Basım Tarihi: 2007
- Doi Numarası: 10.1103/physrevb.76.075334
- Dergi Adı: Physical Review B - Condensed Matter and Materials Physics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- İstanbul Yeni Yüzyıl Üniversitesi Adresli: Hayır
Özet
We report on our theoretical investigation of the effects of the confining potential profile and sample size on the electron velocity distribution in (narrow) quantum Hall systems. The electrostatic properties of the electron system are obtained by the Thomas-Fermi-Poisson nonlinear screening theory. The electron velocity distribution as a function of the lateral coordinate is obtained from the slope of the screened potential at the Fermi level and within the incompressible strips. We compare our findings with the recent experiments. © 2007 The American Physical Society.