Two-dimensional Superconductors with Atomic-scale Thicknesses

Abstract

Recent progress in two-dimensional superconductors with atomic-scale thicknesses is reviewed mainly from the experimental point of view. The superconducting systems treated here involve a variety of materials and forms: elemental-metal ultrathin films and atomic layers on semiconductor surfaces; interfaces and superlattices of heterostructures made of cuprates, perovskite oxides, and rare-earth metal heavy-fermion compounds; interfaces of electric-double-layer transistors; graphene and atomic sheets of transition-metal dichalcogenide; iron selenide and organic conductors on oxide and metal surfaces, respectively. Unique phenomena arising from the ultimate two-dimensionality of the system and the physics behind them are discussed.

79 pages, 23 figures, 1 table, topical review to be published in Supercond. Sci. Technol

References in corpus (22)

• Electric Field Effect in Atomically Thin Carbon Films
• Two Dimensional Atomic Crystals
• Magnetic effects at the interface between nonmagnetic oxides
• Electric Field Control of the LaAlO${}_3$/SrTiO${}_3$ Interface Ground State
• Bipolar supercurrent in graphene
• Superconductivity in single-layer films of FeSe with a transition temperature above 100 K
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• High-temperature interface superconductivity between metallic and insulating cuprates
• Fulde-Ferrell-Larkin-Ovchinnikov State in Heavy Fermion Superconductors
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• Electron Correlation and Pairing States in Superconductors without Inversion Symmetry
• Quantum critical behaviour in the superfluid density of strongly underdoped ultrathin cuprate films
• High temperature superconducting FeSe films on SrTiO3 substrates
• Detection of a superconducting phase in a two-atom layer of hexagonal Ga film grown on semiconducting GaN(0001)
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• Anomalous Upper Critical Field in CeCoIn_5/YbCoIn_5 Superlattices with a Rashba-type Heavy Fermion Interface
• Visualizing landscapes of the superconducting gap in heterogeneous superconductor thin films: geometric influences on proximity effects
• Imaging Josephson Vortices on the Surface Superconductor Si(111)-(root7xroot3)-In using a Scanning Tunneling Microscope
• Controllable Rashba spin-orbit interaction in artificially engineered superlattices involving the heavy-fermion superconductor CeCoIn5
• Two-dimensional superconductor-insulator quantum phase transitions in an electron-doped cuprate

Cited by in corpus (3)

• Evolution of multi-gap superconductivity in the atomically thin limit: Strain-enhanced three-gap superconductivity in monolayer MgB${}_2$
• Electron-phonon interaction and transport properties of metallic bulk and monolayer transition metal dichalcogenide TaS${}_2$
• Strong-coupling superconductivity induced by calcium intercalation in bilayer transition-metal dichalcogenides