Volume 52, Number 6, December II 2000
|Page(s)||667 - 673|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 September 2002|
Orthogonality catastrophe and spontaneous symmetry breaking in double-layer Fermi-liquid–like states
Institute for Theoretical Physics, University of California
Santa Barbara, CA 93106-4030, USA
2 Department of Physics, The Ohio State University - Columbus, OH 43210, USA
Accepted: 17 October 2000
The double-layer electron system with total filling factor can be regarded as two separate Fermi-liquid–like states with when the layer separation is sufficiently large and there is no tunneling. The weak tunneling in this state suffers an orthogonality catastrophe and becomes irrelevant. When the symmetric and antisymmetric combinations of layer indices are taken as the pseudospin degrees of freedom, our results indicate that the first-order transition occurs from the above pseudospin-unpolarized state to the pseudospin-polarized Fermi-liquid–like state with as the tunneling strength becomes sufficiently large.
PACS: 73.40.Hm – Quantum Hall effect (integer and fractional) / 73.20.Dx – Electron states in low-dimensional structures (superlattices, quantum well structures and multilayers)
© EDP Sciences, 2000
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.