Ferromagnetism and superconductivity with possible $p+ip$ pairing symmetry in partially hydrogenated graphene

Abstract

By means of first-principles calculations, we predict two new types of partially hydrogenated graphene systems: C${}_6$H${}_1$ and C${}_6$H${}_5$, which are shown to be ferromagnetic (FM) semimetal and FM narrow-gap semiconductor, respectively. When properly doped, the Fermi surface of the two systems consists of an electron pocket or six hole patches in the first Brillouin zone with completely spin-polarized charge carries. If superconductivity exists in these systems, the stable pairing symmetries are shown to be $p+ip$ for electron doped case, and anisotropic $p+ip$ for hole doped case. The predicted systems may provide fascinating platforms for studying the novel properties of ferromagnetism and triplet-pairing superconductivity as well as two-dimensional spintronics.

References in corpus (22)

• Non-Abelian Anyons and Topological Quantum Computation
• Control of graphene's properties by reversible hydrogenation
• Electrochemically Top Gated Graphene: Monitoring Dopants by Raman Scattering
• Paired states of fermions in two dimensions with breaking of parity and time-reversal symmetries, and the fractional quantum Hall effect
• Graphane: a two-dimensional hydrocarbon
• Non-abelian statistics of half-quantum vortices in p-wave superconductors
• Superconductivity on the border of weak itinerant ferromagnetism in UCoGe
• Superconducting states of pure and doped graphene
• Atomic Hole Doping of Graphene
• Evidence for superconductivity in Li-decorated monolayer graphene
• Understanding adsorption of hydrogen atoms on graphene
• Competing many-body instabilities and unconventional superconductivity in graphene
• Density waves and Cooper pairing on the honeycomb lattice
• Doped graphane: a prototype high-Tc electron-phonon superconductor
• Chiral d-wave superconductivity in doped graphene
• Theory of Ferromagnetic Superconductivity
• Superconductivity from weak repulsion in hexagonal lattice systems
• Interface induced room-temperature ferromagnetism in hydrogenated epitaxial graphene
• d+id'-wave Superconducting States in Graphene
• A Systematic Study of Electronic Structure from Graphene to Graphane
• Two-dimensional Graphene Superlattice Made with Partial Hydrogenation
• The structure and magnetism of graphone

Cited by in corpus (8)

• Phonon-mediated superconductivity in two-dimensional hydrogenated phosphorus carbide: HPC${}_3$
• Theoretical design of all-carbon networks with intrinsic magnetism
• Topological Phase Transitions and a Two-Dimensional Weyl Superconductor in a Half-Metal/Superconductor Heterostructure
• Graphane with carbon dimer defects: Robust in-gap states and a scalable two-dimensional platform for quantum computation
• Larkin-Ovchinnikov state of superconducting Weyl metals: Fundamental differences between pairings restricted and extended in the $\text{k}$-space
• Disorder-dependent superconducting pairing symmetry in doped graphene
• Robust Ferrimagnetic Ground State and Suppressed Superconductivity in Two-Dimensional HC6
• Possible two-component pairings in electron-doped Bi${}_2$Se${}_3$ based on a tight-binding model