Magnetically Tuned Metal-Insulator Transition in LaAlO$_3$/SrTiO$_3$ Nanowire Arrays
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arXiv
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| Format: | Preprint |
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2024
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| author | Ramachandran, Ranjani Anand, Shashank Eom, Kitae Lee, Kyoungjun Yang, Dengyu Yu, Muqing Biswas, Sayanwita Nethwewala, Aditi Eom, Chang-Beom Carlson, Erica Irvin, Patrick Levy, Jeremy |
| author_facet | Ramachandran, Ranjani Anand, Shashank Eom, Kitae Lee, Kyoungjun Yang, Dengyu Yu, Muqing Biswas, Sayanwita Nethwewala, Aditi Eom, Chang-Beom Carlson, Erica Irvin, Patrick Levy, Jeremy |
| contents | A wide family of two dimensional (2D) systems, including stripe-phase superconductors, sliding Luttinger liquids, and anisotropic 2D materials, can be modeled by an array of coupled one-dimensional (1D) electron channels or nanowire arrays. Here we report experiments in arrays of conducting nanowires with gate and field tunable interwire coupling, that are programmed at the LaAlO$_3$/SrTiO$_3$ interface. We find a magnetically-tuned metal-to-insulator transition in which the transverse resistance of the nanowire array increases by up to four orders of magnitude. To explain this behavior, we develop a minimal model of a coupled two-wire system which agrees well with observed phenomena. These nanowire arrays can serve as a model systems to understand the origin of exotic behavior in correlated materials via analog quantum simulation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_01937 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Magnetically Tuned Metal-Insulator Transition in LaAlO$_3$/SrTiO$_3$ Nanowire Arrays Ramachandran, Ranjani Anand, Shashank Eom, Kitae Lee, Kyoungjun Yang, Dengyu Yu, Muqing Biswas, Sayanwita Nethwewala, Aditi Eom, Chang-Beom Carlson, Erica Irvin, Patrick Levy, Jeremy Mesoscale and Nanoscale Physics Strongly Correlated Electrons Superconductivity A wide family of two dimensional (2D) systems, including stripe-phase superconductors, sliding Luttinger liquids, and anisotropic 2D materials, can be modeled by an array of coupled one-dimensional (1D) electron channels or nanowire arrays. Here we report experiments in arrays of conducting nanowires with gate and field tunable interwire coupling, that are programmed at the LaAlO$_3$/SrTiO$_3$ interface. We find a magnetically-tuned metal-to-insulator transition in which the transverse resistance of the nanowire array increases by up to four orders of magnitude. To explain this behavior, we develop a minimal model of a coupled two-wire system which agrees well with observed phenomena. These nanowire arrays can serve as a model systems to understand the origin of exotic behavior in correlated materials via analog quantum simulation. |
| title | Magnetically Tuned Metal-Insulator Transition in LaAlO$_3$/SrTiO$_3$ Nanowire Arrays |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons Superconductivity |
| url | https://arxiv.org/abs/2410.01937 |