One-dimensional band-edge absorption in a doped quantum wire |
| |
| Authors: | Ihara Toshiyuki Hayamizu Yuhei Yoshita Masahiro Akiyama Hidefumi Pfeiffer Loren N West Ken W |
| |
| Institution: | Institute for Solid State Physics (ISSP), University of Tokyo, and CREST, JST, 5-1-5, Kashiwanoha, Kashiwa, 277-8581 Chiba, Japan. ihara@issp.u-tokyo.ac.jp |
| |
| Abstract: | Low-temperature photoluminescence-excitation spectra are studied in an n-type modulation-doped T-shaped single quantum wire with a gate to tune electron densities. With a nondegenerate one-dimensional (1D) electron gas, the band-edge absorption exhibits a sharp peak structure induced by the 1D density of states. When the dense 1D electron gas is degenerate at a low temperature, we observe a Fermi-edge absorption onset without many-body modifications. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
