Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-05-05
Phys. Rev. B. 79, 195311 (2009)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
6 pages, 7 figures, accepted for publication in Phys. Rev. B
Scientific paper
We measure the effective mass (m*) of interacting two-dimensional electrons confined to a 4.5 nm-wide AlAs quantum well. The electrons in this well occupy a single out-of-plane conduction band valley with an isotropic in-plane Fermi contour. When the electrons are partially spin polarized, m* is larger than its band value and increases as the density is reduced. However, as the system is driven to full spin-polarization via the application of a strong parallel magnetic field, m* is suppressed down to values near or even below the band mass. Our results are consistent with the previously reported measurements on wide AlAs quantum wells where the electrons occupy an in-plane valley with an anisotropic Fermi contour and effective mass, and suggest that the effective mass suppression upon complete spin polarization is a genuine property of interacting two-dimensional electrons.
Gokmen Tayfun
Padmanabhan Medini
Shayegan Mansour
Tutuc Emanuel
Vakili K.
No associations
LandOfFree
Effective mass suppression upon complete spin-polarization in an isotropic two-dimensional electron system does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Effective mass suppression upon complete spin-polarization in an isotropic two-dimensional electron system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effective mass suppression upon complete spin-polarization in an isotropic two-dimensional electron system will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-451145