Murphy, S. Q. and Eisenstein, J. P. and Boebinger, G. S. and Pfeiffer, L. N. and West, K. W. (1994) Many-body integer quantum Hall effect: Evidence for new phase transitions. Physical Review Letters, 72 (5). pp. 728-731. ISSN 0031-9007. https://resolver.caltech.edu/CaltechAUTHORS:MURprl94
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Abstract
The ν=1 quantum Hall effect in bilayer 2D electron systems is shown to continuously evolve from a regime dominated by single-particle tunneling into one where interlayer Coulomb interactions stabilize the state. This many-body integer quantum Hall state exhibits a phase transition to a compressible state at large layer separation. We also find evidence for an intriguing and unexpected second transition to a new incompressible state, driven by an in-plane magnetic field. While the origin of this last result is unclear, we discuss a recent model of a pseudospin textural phase transition.
| Item Type: | Article | ||||||
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| Additional Information: | ©1994 The American Physical Society Received 25 October 1993 The authors acknowledge fruitful discussions with Allan MacDonald, Steve Girvin, Song He, and Francis Ezawa. J.P.E. and G.S.B. acknowledge the hospitality of the Aspen Center for Physics. | ||||||
| Issue or Number: | 5 | ||||||
| Record Number: | CaltechAUTHORS:MURprl94 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:MURprl94 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 3567 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Archive Administrator | ||||||
| Deposited On: | 15 Jun 2006 | ||||||
| Last Modified: | 02 Oct 2019 23:04 |
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