Universal behavior of the bosonic metallic ground state in a two-dimensional superconductor

Abstract Anomalous metallic behavior, marked by a saturating finite resistivity much lower than the Drude estimate, has been observed in a wide range of two-dimensional superconductors. Utilizing the electrostatically gated LaAlO3/SrTiO3 interface as a versatile platform for superconductor-metal qua...

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Autores principales:	Zhuoyu Chen, Bai Yang Wang, Adrian G. Swartz, Hyeok Yoon, Yasuyuki Hikita, Srinivas Raghu, Harold Y. Hwang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197
Acceso en línea:	https://doaj.org/article/d095b766165d490e89868eafaa188641
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spelling	oai:doaj.org-article:d095b766165d490e89868eafaa1886412021-12-02T14:18:14ZUniversal behavior of the bosonic metallic ground state in a two-dimensional superconductor10.1038/s41535-021-00312-x2397-4648https://doaj.org/article/d095b766165d490e89868eafaa1886412021-02-01T00:00:00Zhttps://doi.org/10.1038/s41535-021-00312-xhttps://doaj.org/toc/2397-4648Abstract Anomalous metallic behavior, marked by a saturating finite resistivity much lower than the Drude estimate, has been observed in a wide range of two-dimensional superconductors. Utilizing the electrostatically gated LaAlO3/SrTiO3 interface as a versatile platform for superconductor-metal quantum phase transitions, we probe variations in the gate, magnetic field, and temperature to construct a phase diagram crossing from superconductor, anomalous metal, vortex liquid, to the Drude metal state, combining longitudinal and Hall resistivity measurements. We find that the anomalous metal phases induced by gating and magnetic field, although differing in symmetry, are connected in the phase diagram and exhibit similar magnetic field response approaching zero temperature. Namely, within a finite regime of the anomalous metal state, the longitudinal resistivity linearly depends on the field while the Hall resistivity diminishes, indicating an emergent particle-hole symmetry. The universal behavior highlights the uniqueness of the quantum bosonic metallic state, distinct from bosonic insulators and vortex liquids.Zhuoyu ChenBai Yang WangAdrian G. SwartzHyeok YoonYasuyuki HikitaSrinivas RaghuHarold Y. HwangNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492Atomic physics. Constitution and properties of matterQC170-197ENnpj Quantum Materials, Vol 6, Iss 1, Pp 1-6 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Atomic physics. Constitution and properties of matter QC170-197 Zhuoyu Chen Bai Yang Wang Adrian G. Swartz Hyeok Yoon Yasuyuki Hikita Srinivas Raghu Harold Y. Hwang Universal behavior of the bosonic metallic ground state in a two-dimensional superconductor
description	Abstract Anomalous metallic behavior, marked by a saturating finite resistivity much lower than the Drude estimate, has been observed in a wide range of two-dimensional superconductors. Utilizing the electrostatically gated LaAlO3/SrTiO3 interface as a versatile platform for superconductor-metal quantum phase transitions, we probe variations in the gate, magnetic field, and temperature to construct a phase diagram crossing from superconductor, anomalous metal, vortex liquid, to the Drude metal state, combining longitudinal and Hall resistivity measurements. We find that the anomalous metal phases induced by gating and magnetic field, although differing in symmetry, are connected in the phase diagram and exhibit similar magnetic field response approaching zero temperature. Namely, within a finite regime of the anomalous metal state, the longitudinal resistivity linearly depends on the field while the Hall resistivity diminishes, indicating an emergent particle-hole symmetry. The universal behavior highlights the uniqueness of the quantum bosonic metallic state, distinct from bosonic insulators and vortex liquids.
format	article
author	Zhuoyu Chen Bai Yang Wang Adrian G. Swartz Hyeok Yoon Yasuyuki Hikita Srinivas Raghu Harold Y. Hwang
author_facet	Zhuoyu Chen Bai Yang Wang Adrian G. Swartz Hyeok Yoon Yasuyuki Hikita Srinivas Raghu Harold Y. Hwang
author_sort	Zhuoyu Chen
title	Universal behavior of the bosonic metallic ground state in a two-dimensional superconductor
title_short	Universal behavior of the bosonic metallic ground state in a two-dimensional superconductor
title_full	Universal behavior of the bosonic metallic ground state in a two-dimensional superconductor
title_fullStr	Universal behavior of the bosonic metallic ground state in a two-dimensional superconductor
title_full_unstemmed	Universal behavior of the bosonic metallic ground state in a two-dimensional superconductor
title_sort	universal behavior of the bosonic metallic ground state in a two-dimensional superconductor
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d095b766165d490e89868eafaa188641
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Universal behavior of the bosonic metallic ground state in a two-dimensional superconductor

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