Spin-spin correlations of magnetic adatoms on graphene

2014/10/30 by A. D. Güçlü, A. D. Guclu, Nejat Bulut · 13 citations
Materials Science · Physics and Astronomy · #Anderson impurity model #Condensed matter physics #Graphene #Graphene research and applications #Hamiltonian (control theory) #Impurity #Magnetic impurity #Monte Carlo method #Physics #Quantum Monte Carlo #Quantum and electron transport phenomena #Quantum mechanics #Spin (aerodynamics) #Theoretical and Computational Physics #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.91.125403

published in Physical Review B 91(12) (American Physical Society) · 4 pages, 4 figures

arxiv created 2014/10/30 · openalex publication_date 2015/03/03 · arxiv updated 2015/03/11 · openalex created_date 2016/07/22 · openalex updated_date 2026/08/05

Abstract

We study the interaction between two magnetic adatom impurities in graphene using the Anderson model. The two-impurity Anderson Hamiltonian is solved numerically by using the quantum Monte Carlo technique. We find that the interimpurity spin susceptibility is strongly enhanced at low temperatures, significantly diverging from the well-known Ruderman-Kittel-Kasuya-Yoshida result which decays as R^\ensuremath-3.

Citations

• Magnetic Correlations at Graphene Edges: Basis for Novel Spintronics Devices
• RKKY in half-filled bipartite lattices: Graphene as an example
• Adsorption of cobalt on graphene: Electron correlation effects from a quantum chemical perspective
• Interactions and Magnetism in Graphene Boundary States
• Electric Field Effect in Atomically Thin Carbon Films
• The electronic properties of graphene
• Experimental observation of the quantum Hall effect and Berry's phase in graphene