Theoretical investigation of the effect of sample properties on the electron velocity in quantum Hall bars

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Atıf İçin Kopyala

EKŞİ D., ÇİÇEK E., MEŞE A. İ., AKTAŞ Ş., Siddiki A., Hakioğlu T. T.

Physical Review B - Condensed Matter and Materials Physics, cilt.76, sa.7, 2007 (SCI-Expanded)

• 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
• İstanbul Yeni Yüzyıl Üniversitesi Adresli: Evet

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.