Pascal-liquid phases in ballistic one-dimensional LaAlO<sub>3</sub>/SrTiO<sub>3</sub> channels

 · Invited

Abstract

The challenge of understanding strongly interacting composite fermionic phases of matter spans many fields in physics, ranging from neutron stars to solid-state materials to quark-gluon plasmas. We report experimental evidence of a new family of degenerate quantum liquids formed from bound states of n = 2, 3, 4, … electrons, which are stabilized within quasi-one-dimensional electron waveguides formed at the LaAlO3/SrTiO3 interface. The key signature of this phase is the existence of quantized conduction that follows a characteristic sequence within Pascal’s triangle: (1, 3, 6, 10, 15,…), where is the electron charge and is the Planck constant. The ability to create and investigate composite fermionic phases opens new avenues for the investigation of strongly correlated quantum matter.

*This work is supported in part by a Vannevar Bush Faculty Fellowship ONR grant N00014-15-1-2847 (J.L.) and the Charles E. Kaufman Foundation (D.P). The work at University of Wisconsin-Madison (design and synthesis of thin film heterostructures) was supported by the US Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences, under award number DEFG02-06ER46327.

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Presenters

  • Jeremy Levy

    • Department of Physics and Astronomy, University of Pittsburgh
    • Department of Physics, University of Pittsburgh
    • University of Pittsburgh
    • Department of Physics & Astronomy, University of Pittsburgh
    • Physics and Astronomy, University of Pittsburgh

Authors

  • Jeremy Levy

    • Department of Physics and Astronomy, University of Pittsburgh
    • Department of Physics, University of Pittsburgh
    • University of Pittsburgh
    • Department of Physics & Astronomy, University of Pittsburgh
    • Physics and Astronomy, University of Pittsburgh

  • Megan Briggeman

    • Department of Physics and Astronomy, University of Pittsburgh
    • Physics and Astronomy, University of Pittsburgh
    • University of Pittsburgh

  • Michelle Tomczyk

    • Pennsylvania State University
    • Department of Physics and Astronomy, University of Pittsburgh
    • University of Pittsburgh

  • Binbin Tian

    • Physics and Astronomy, University of Pittsburgh
    • University of Pittsburgh

  • Hyungwoo Lee

    • Department of Materials Science and Engineering, University of Wisconsin–Madison
    • Department of Materials Science and Engineering, University of Wisconsin-Madison
    • University of Wisconsin-Madison
    • Department of Material Science and Engineering, University of Wisconsin-Madison
    • Materials Science and Engineering, University of Wisconsin-Madison
    • Materials Science and Engineering, Univ of Wisconsin-Madison
    • University of Wisconsin–Madison

  • Jung-Woo Lee

    • Department of Materials Science and Engineering, University of Wisconsin-Madison
    • Materials Science and Engineering, University of Wisconsin-Madison
    • University of Wisconsin–Madison
    • University of Wisconsin-Madison

  • Yuchi He

    • Physics, Carnegie Mellon University
    • Carnegie Mellon University

  • Anthony Tylan-Tyler

    • Physics and Astronomy, University of Pittsburgh
    • Department of Physics and Astronomy, University of Pittsburgh
    • University of Pittsburgh

  • Mengchen Huang

    • Department of Physics and Astronomy, University of Pittsburgh
    • Physics, University of California-Santa Barbara
    • Physics and Astronomy, University of Pittsburgh
    • University of Pittsburgh

  • Chang-Beom Eom

    • Department of Materials Science and Engineering, University of Wisconsin–Madison
    • Department of Materials Science and Engineering, University of Wisconsin-Madison
    • University of Wisconsin-Madison
    • Department of Material Science and Engineering, University of Wisconsin-Madison
    • Materials Science and Engineering, University of Wisconsin-Madison
    • Materials Science and Engineering, Univ of Wisconsin-Madison
    • University of Wisconsin–Madison

  • David Pekker

    • University of Pittsburgh
    • Department of Physics and Astronomy, University of Pittsburgh
    • Physics and Astronomy, University of Pittsburgh

  • Roger Mong

    • Physics, University of Pittsburgh
    • Physics and Astronomy, University of Pittsburgh
    • University of Pittsburgh
    • Department of Physics and Astronomy, University of Pittsburgh

  • Patrick Irvin

    • Department of Physics and Astronomy, University of Pittsburgh
    • Department of Physics, University of Pittsburgh
    • University of Pittsburgh
    • Department of Physics & Astronomy, University of Pittsburgh
    • Physics and Astronomy, University of Pittsburgh