Engineered spin-orbit interactions in LaAlO 3 /SrTiO 3 -based 1D serpentine electron waveguides
Abstract
The quest to understand, design, and synthesize new forms of quantum matter guides much of contemporary research in condensed matter physics. One-dimensional (1D) electronic systems form the basis for some of the most interesting and exotic phases of quantum matter. Here, we describe a family of quasi-1D nanostructures, based on LaAlO3/SrTiO3 electron waveguides, in which a sinusoidal transverse spatial modulation is imposed. These devices display unique dispersive features in the subband spectra, namely, a sizeable shift (~7 T) in the spin-dependent subband minima, and fractional conductance plateaus. The first property can be understood as an engineered spin-orbit interaction associated with the periodic acceleration of electrons as they undulate through the nanowire (ballistically), while the second property signifies the presence of enhanced electron-electron scattering in this system. The ability to engineer these interactions in quantum wires contributes to the tool set of a 1D solid-state quantum simulation platform.
- Authors:
-
[1];
[2];
[2];
[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, Madison, WI 53706, USA.
- Publication Date:
- Research Org.:
- Univ. of Wisconsin, Madison, WI (United States); Univ. of Pittsburgh, PA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1724274
- Alternate Identifier(s):
- OSTI ID: 1816217
- Grant/Contract Number:
- FG02-06ER46327; SC0014417
- Resource Type:
- Published Article
- Journal Name:
- Science Advances
- Additional Journal Information:
- Journal Name: Science Advances Journal Volume: 6 Journal Issue: 48; Journal ID: ISSN 2375-2548
- Publisher:
- American Association for the Advancement of Science (AAAS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Briggeman, Megan, Li, Jianan, Huang, Mengchen, Lee, Hyungwoo, Lee, Jung-Woo, Eom, Kitae, Eom, Chang-Beom, Irvin, Patrick, and Levy, Jeremy. Engineered spin-orbit interactions in LaAlO 3 /SrTiO 3 -based 1D serpentine electron waveguides. United States: N. p., 2020.
Web. doi:10.1126/sciadv.aba6337.
Briggeman, Megan, Li, Jianan, Huang, Mengchen, Lee, Hyungwoo, Lee, Jung-Woo, Eom, Kitae, Eom, Chang-Beom, Irvin, Patrick, & Levy, Jeremy. Engineered spin-orbit interactions in LaAlO 3 /SrTiO 3 -based 1D serpentine electron waveguides. United States. https://doi.org/10.1126/sciadv.aba6337
Briggeman, Megan, Li, Jianan, Huang, Mengchen, Lee, Hyungwoo, Lee, Jung-Woo, Eom, Kitae, Eom, Chang-Beom, Irvin, Patrick, and Levy, Jeremy. Fri .
"Engineered spin-orbit interactions in LaAlO 3 /SrTiO 3 -based 1D serpentine electron waveguides". United States. https://doi.org/10.1126/sciadv.aba6337.
@article{osti_1724274,
title = {Engineered spin-orbit interactions in LaAlO 3 /SrTiO 3 -based 1D serpentine electron waveguides},
author = {Briggeman, Megan and Li, Jianan and Huang, Mengchen and Lee, Hyungwoo and Lee, Jung-Woo and Eom, Kitae and Eom, Chang-Beom and Irvin, Patrick and Levy, Jeremy},
abstractNote = {The quest to understand, design, and synthesize new forms of quantum matter guides much of contemporary research in condensed matter physics. One-dimensional (1D) electronic systems form the basis for some of the most interesting and exotic phases of quantum matter. Here, we describe a family of quasi-1D nanostructures, based on LaAlO3/SrTiO3 electron waveguides, in which a sinusoidal transverse spatial modulation is imposed. These devices display unique dispersive features in the subband spectra, namely, a sizeable shift (~7 T) in the spin-dependent subband minima, and fractional conductance plateaus. The first property can be understood as an engineered spin-orbit interaction associated with the periodic acceleration of electrons as they undulate through the nanowire (ballistically), while the second property signifies the presence of enhanced electron-electron scattering in this system. The ability to engineer these interactions in quantum wires contributes to the tool set of a 1D solid-state quantum simulation platform.},
doi = {10.1126/sciadv.aba6337},
journal = {Science Advances},
number = 48,
volume = 6,
place = {United States},
year = {2020},
month = {11}
}
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