Jompol, Y., Ford, C.J.B., Griffiths, J.P. et al. (6 more authors) (2009) Probing Spin-Charge Separation in a Tomonaga-Luttinger Liquid. Science, 325 (5940). 597 - 601. ISSN 0036-8075
Abstract
In a one-dimensional (1D) system of interacting electrons, excitations of spin and charge travel at different speeds, according to the theory of a Tomonaga-Luttinger liquid (TLL) at low energies. However, the clear observation of this spin-charge separation is an ongoing challenge experimentally. We have fabricated an electrostatically gated 1D system in which we observe spin-charge separation and also the predicted power-law suppression of tunneling into the 1D system. The spin-charge separation persists even beyond the low-energy regime where the TLL approximation should hold. TLL effects should therefore also be important in similar, but shorter, electrostatically gated wires, where interaction effects are being studied extensively worldwide.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2009 The Author(s). This is an author produced version of a paper subsequently published in Science. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 17 Jul 2015 10:20 |
Last Modified: | 21 Mar 2018 18:36 |
Published Version: | http://dx.doi.org/10.1126/science.1171769 |
Status: | Published |
Publisher: | American Association for the Advancement of Science |
Refereed: | Yes |
Identification Number: | 10.1126/science.1171769 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:88076 |