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Title: 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:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [2];  [3]; ORCiD logo [1];  [1]; ORCiD logo [2];  [1];  [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, USA., Pittsburgh Quantum Institute, Pittsburgh, PA 15260, USA.
  2. Department of Materials Science and Engineering, University of Wisconsin, Madison, WI 53706, USA.
  3. 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. 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, and Levy, Jeremy. Thu . "Pascal conductance series in ballistic one-dimensional LaAlO 3 /SrTiO 3 channels". United States. doi: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}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1126/science.aat6467

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