Composite fermions close to the one-half filling of the lowest Landau level revisited
| dc.creator | Farid, Behnam | |
| dc.date | 2000-03-07 | |
| dc.date.accessioned | 2026-07-07T02:36:57Z | |
| dc.date.available | 2026-07-07T02:36:57Z | |
| dc.description | By strictly adhering to the microscopic theory of composite fermions (CFs) for the Landau-level filling fractions ν_e = p/(2 p + 1), we reproduce, with remarkable accuracy, the surface-acoustic-wave (SAW)-based experimental results by Willett and co-workers concerning two-dimensional electron systems with ν_e close to 1/2. Our results imply that the electron band mass m_b, as distinct from the CF mass m_*, must undergo a substantial increase under the conditions corresponding to ν_e close to 1/2. We further establish that a finite mean-free path \ell_0 is essential for the observed linearity of the longitudinal conductivity σ_{xx}(q) as deduced from the SAW velocity shifts. | |
| dc.description | 4 pages, 2 figures included | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0003064 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0003064 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/16114 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Composite fermions close to the one-half filling of the lowest Landau level revisited | |
| dc.type | text |