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Spin and the Coulomb gap in the half-filled lowest Landau level

Eisenstein, J. P. and Khaire, T. and Nandi, D. and Finck, A. D. K. and Pfeiffer, L. N. and West, K. W. (2016) Spin and the Coulomb gap in the half-filled lowest Landau level. Physical Review B, 94 (12). Art. No. 125409. ISSN 2469-9950. http://resolver.caltech.edu/CaltechAUTHORS:20160908-103416522

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Abstract

The Coulomb gap observed in tunneling between parallel two-dimensional electron systems, each at half-filling of the lowest Landau level, is found to depend sensitively on the presence of an in-plane magnetic field. Especially at low electron density, the width of the Coulomb gap at first increases sharply with in-plane field, but then abruptly levels off. This behavior appears to coincide with the known transition from partial to complete spin polarization of the half-filled lowest Landau level. The tunneling gap therefore opens a window onto the spin configuration of two-dimensional electron systems at high magnetic field.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevB.94.125409DOIArticle
https://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.125409PublisherArticle
http://arxiv.org/abs/1607.06171arXivDiscussion Paper
Additional Information:© 2016 American Physical Society. Received 21 July 2016; published 8 September 2016. It is a pleasure to acknowledge helpful discussions with H. R. Krishnamurthy, P. A. Lee, A. H. MacDonald, and especially S. H. Simon and A. Stern. This work was supported in part by the Institute for Quantum Information and Matter, an NSF Physics Frontiers Center with support of the Gordon and Betty Moore Foundation through Grant No. GBMF1250. The work at Princeton University was funded by the Gordon and Betty Moore Foundation through Grant GBMF4420, and by the National Science Foundation MRSEC Grant 1420541.
Group:Institute for Quantum Information and Matter, IQIM
Funders:
Funding AgencyGrant Number
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
NSF Physics Frontiers CenterUNSPECIFIED
Gordon and Betty Moore FoundationGBMF1250
Gordon and Betty Moore FoundationGBMF4420
NSFDMR-1420541
Record Number:CaltechAUTHORS:20160908-103416522
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20160908-103416522
Official Citation:Spin and the Coulomb gap in the half-filled lowest Landau level J. P. Eisenstein, T. Khaire, D. Nandi, A. D. K. Finck, L. N. Pfeiffer, and K. W. West Phys. Rev. B 94, 125409 (2016
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70206
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:08 Sep 2016 18:20
Last Modified:08 Sep 2016 18:20

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