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Resonantly Enhanced Tunneling in a Double Layer Quantum Hall Ferromagnet

Spielman, I. B. and Eisenstein, J. P. and Pfeiffer, L. N. and West, K. W. (2000) Resonantly Enhanced Tunneling in a Double Layer Quantum Hall Ferromagnet. Physical Review Letters, 84 (25). pp. 5808-5811. ISSN 0031-9007. doi:10.1103/PhysRevLett.84.5808.

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The tunneling conductance between two parallel 2D electron systems has been measured in a regime of strong interlayer Coulomb correlations. At total Landau level filling νT = 1 the tunnel spectrum changes qualitatively when the boundary separating the compressible phase from the ferromagnetic quantized Hall state is crossed. A huge resonant enhancement replaces the strongly suppressed equilibrium tunneling characteristic of weakly coupled layers. The possible relationship of this enhancement to the Goldstone mode of the broken symmetry ground state is discussed.

Item Type:Article
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URLURL TypeDescription Paper
Alternate Title:Evidence for a Goldstone Mode in a Double Layer Quantum Hall System
Additional Information:© 2000 The American Physical Society. Received 16 February 2000. We are indebted to A. H. MacDonald, S. M. Girvin, and A. C. Gossard for numerous useful discussions, and to the NSF for Grant No. DMR9700945 and the DOE for Grant No. DE-FG03-99ER45766. One of us (I.B.S.) acknowledges support from the Department of Defense.
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG03-99ER45766
Department of DefenseUNSPECIFIED
Issue or Number:25
Record Number:CaltechAUTHORS:SPIprl00
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5304
Deposited By: Archive Administrator
Deposited On:09 Oct 2006
Last Modified:08 Nov 2021 20:24

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