Superconducting Two-Dimensional Metal-Organic Framework

Abstract

Superconductivity is a fascinating quantum phenomenon characterized by zero electrical resistance and the Meissner effect. To date, several distinct families of superconductors (SCs) have been discovered. These include three-dimensional (3D) bulk SCs in both inorganic and organic materials as well as two-dimensional (2D) thin film SCs but only in $inorganic$ materials. Here we predict superconductivity in 2D and 3D $organic$ metal-organic frameworks by using first-principles calculations. We show that the highly conductive and recently synthesized Cu-benzenehexathial (BHT) is a Bardeen-Cooper-Schrieffer SC. Remarkably, the monolayer Cu-BHT has a critical temperature ($T_c$) of 4.43 K while $T_c$ of bulk Cu-BHT is 1.58 K. Different from the enhanced $T_c$ in 2D inorganic SCs which is induced by interfacial effects, the $T_c$ enhancement in this 2D organic SC is revealed to be the out-of-plane soft-mode vibrations, analogous to surface mode enhancement originally proposed by $Ginzburg$. Our findings not only shed new light on better understanding 2D superconductivity, but also open a new direction to search for SCs by interface engineering with organic materials.

arXiv comment15 pages, 7 figures

References in corpus (14)

• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• Interface induced high temperature superconductivity in single unit-cell FeSe films on SrTiO3
• High temperature fractional quantum Hall states
• Strongly enhanced charge-density-wave order in monolayer NbSe${}_2$
• Interfacial mode coupling as the origin of the enhancement of Tc in FeSe films on SrTiO3
• Superconductivity protected by spin-valley locking in ion-gated MoS2
• Highly crystalline 2D superconductors
• High-temperature interface superconductivity between metallic and insulating cuprates
• Nature of the Quantum Metal in a Two-Dimensional Crystalline Superconductor
• Metallic ground state in an ion-gated two-dimensional superconductor
• Electric-field-induced superconductivity in electrochemically-etched ultrathin FeSe films on SrTiO3 and MgO
• Flat Chern Band in a Two-Dimensional Organometallic Framework
• Electron-Phonon Interactions in Graphene, Bilayer Graphene, and Graphite
• Two-dimensional Superconductors with Atomic-scale Thicknesses

Cited by in corpus (18)

• Two-dimensional band structure in honeycomb metal-organic frameworks
• Strongly correlated superconductivity in a copper-based metal-organic framework with a perfect kagome lattice
• High-Throughput DFT-Based Discovery of Next Generation Two-Dimensional (2D) Superconductors
• Engineering interfacial quantum states and electronic landscapes by molecular nanoarchitectures
• Prediction of phonon-mediated superconductivity with high critical temperature in the two-dimensional topological semimetal W2N3
• Superconductivity in two-dimensional phosphorus carbide (${\beta }_0$-PC)
• Synthesis and Local Probe Gating of a Monolayer Metal-Organic Framework
• Prediction of intrinsic topological superconductivity in Mn-doped GeTe monolayer from first-principles
• Two-dimensional Kagome Materials: Theoretical Insights, Experimental Realizations, and Electronic Structures
• Cross-band versus intra-band pairing in superconductors: signatures and consequences of the interplay
• On-surface Assembly of Au-Dicyanoanthracene Coordination Structures on Au(111)
• Parametrization of Non-Bonded Force Field Terms for Metal-Organic Frameworks Using Machine Learning Approach
• Triggering superconductivity, semiconducting states, and ternary valley structure in graphene via functionalization with Si-N layers
• Spin-$0$ Mott insulator to metal to spin-$1$ Mott insulator transition in the single-orbital Hubbard model on the decorated honeycomb lattice
• Spin Excitations of High Spin Iron(II) in Metal-Organic Chains on Metal and Superconductor
• The Future of the Correlated Electron Problem
• $C_3$ symmetry breaking metal-insulator transitions in a flat band in the half-filled Hubbard model on the decorated honeycomb lattice
• Orbital design of topological insulators from two-dimensional semiconductors