Pascal conductance series in ballistic one-dimensional LaAlO 3 /SrTiO 3 channels
[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.
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.
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- FG02-06ER46327; SC0014417
- OSTI ID:
- 1599696
- Journal Information:
- Science, Journal Name: Science Journal Issue: 6479 Vol. 367; ISSN 0036-8075
- Publisher:
- American Association for the Advancement of Science (AAAS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electro- and Magnetotransport near a LaAlO{sub 3}/SrTiO{sub 3} Interphase Boundary
Long‐Range Non‐Coulombic Electron–Electron Interactions between LaAlO 3 /SrTiO 3 Nanowires