Abstract
We report current transmission data through a split-gate constriction fabricated onto a two-dimensional electron system in the integer quantum Hall (QH) regime. Split-gate biasing drives interedge backscattering and is shown to lead to suppressed or enhanced transmission, in marked contrast to the expected linear Fermi-liquid behavior. This evolution is described in terms of particle-hole symmetry and allows us to conclude that an unexpected class of gate-controlled particle-hole-symmetric chiral Luttinger liquids (CLLs) can exist at the edges of our QH circuit. These results highlight the role of particle-hole symmetry on the properties of CLL edge states.
Original language | English (US) |
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Article number | 156804 |
Journal | Physical review letters |
Volume | 95 |
Issue number | 15 |
DOIs | |
State | Published - Oct 7 2005 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy