Pascal conductance series in ballistic one-dimensional LaAlO 3 /SrTiO 3 channels
Abstract
One-dimensional electronic systems can support exotic collective phases because of the enhanced role of electron correlations. We describe the experimental observation of a series of quantized conductance steps within strongly interacting electron waveguides formed at the lanthanum aluminate–strontium titanate (LaAlO 3 /SrTiO 3 ) interface. The waveguide conductance follows a characteristic sequence within Pascal’s triangle: (1, 3, 6, 10, 15, …) ⋅ e 2 /h , where e is the electron charge and h is the Planck constant. This behavior is consistent with the existence of a family of degenerate quantum liquids formed from bound states of n = 2, 3, 4, … electrons. Our experimental setup could provide a setting for solid-state analogs of a wide range of composite fermionic phases.
- Authors:
-
[1];
[1];
[1];
[2];
[1];
[2];
[1];
[1]
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, USA., Pittsburgh Quantum Institute, Pittsburgh, PA 15260, USA.
- Department of Materials Science and Engineering, University of Wisconsin, Madison, WI 53706, USA.
- Pittsburgh Quantum Institute, Pittsburgh, PA 15260, USA., Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1599696
- Grant/Contract Number:
- DEFG02-06ER46327; SC0014417
- Resource Type:
- Published Article
- Journal Name:
- Science
- Additional Journal Information:
- Journal Name: Science Journal Volume: 367 Journal Issue: 6479; Journal ID: ISSN 0036-8075
- Publisher:
- American Association for the Advancement of Science (AAAS)
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Briggeman, Megan, Tomczyk, Michelle, Tian, Binbin, Lee, Hyungwoo, Lee, Jung-Woo, He, Yuchi, Tylan-Tyler, Anthony, Huang, Mengchen, Eom, Chang-Beom, Pekker, David, Mong, Roger S. K., Irvin, Patrick, and Levy, Jeremy. Pascal conductance series in ballistic one-dimensional LaAlO 3 /SrTiO 3 channels. United States: N. p., 2020.
Web. doi:10.1126/science.aat6467.
Briggeman, Megan, Tomczyk, Michelle, Tian, Binbin, Lee, Hyungwoo, Lee, Jung-Woo, He, Yuchi, Tylan-Tyler, Anthony, Huang, Mengchen, Eom, Chang-Beom, Pekker, David, Mong, Roger S. K., Irvin, Patrick, & Levy, Jeremy. Pascal conductance series in ballistic one-dimensional LaAlO 3 /SrTiO 3 channels. United States. https://doi.org/10.1126/science.aat6467
Briggeman, Megan, Tomczyk, Michelle, Tian, Binbin, Lee, Hyungwoo, Lee, Jung-Woo, He, Yuchi, Tylan-Tyler, Anthony, Huang, Mengchen, Eom, Chang-Beom, Pekker, David, Mong, Roger S. K., Irvin, Patrick, and Levy, Jeremy. Thu .
"Pascal conductance series in ballistic one-dimensional LaAlO 3 /SrTiO 3 channels". United States. https://doi.org/10.1126/science.aat6467.
@article{osti_1599696,
title = {Pascal conductance series in ballistic one-dimensional LaAlO 3 /SrTiO 3 channels},
author = {Briggeman, Megan and Tomczyk, Michelle and Tian, Binbin and Lee, Hyungwoo and Lee, Jung-Woo and He, Yuchi and Tylan-Tyler, Anthony and Huang, Mengchen and Eom, Chang-Beom and Pekker, David and Mong, Roger S. K. and Irvin, Patrick and Levy, Jeremy},
abstractNote = {One-dimensional electronic systems can support exotic collective phases because of the enhanced role of electron correlations. We describe the experimental observation of a series of quantized conductance steps within strongly interacting electron waveguides formed at the lanthanum aluminate–strontium titanate (LaAlO 3 /SrTiO 3 ) interface. The waveguide conductance follows a characteristic sequence within Pascal’s triangle: (1, 3, 6, 10, 15, …) ⋅ e 2 /h , where e is the electron charge and h is the Planck constant. This behavior is consistent with the existence of a family of degenerate quantum liquids formed from bound states of n = 2, 3, 4, … electrons. Our experimental setup could provide a setting for solid-state analogs of a wide range of composite fermionic phases.},
doi = {10.1126/science.aat6467},
journal = {Science},
number = 6479,
volume = 367,
place = {United States},
year = {2020},
month = {2}
}
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