Surprises in the phase diagram of an Anderson impurity model for a single C${}_{60}^{n-}$ molecule

Abstract

We find by Wilson numerical renormalization group and conformal field theory that a three-orbital Anderson impurity model for a C${}_{60}^{n-}$ molecule has a very rich phase diagram which includes non-Fermi-liquid stable and unstable fixed points with interesting properties, most notably high sensitivity to doping $n$. We discuss the implications of our results to the conductance behavior of C${}_{60}$-based single-molecule transistor devices.

arXiv comment4 pages, 3 figures, 2 tables. Accepted version

References in corpus (4)

• Superconductivity in Fullerides
• The Kondo effect in C${}_{60}$ single-molecule transistors
• Boundary Critical Phenomena in the Three-State Potts Model
• Non-trivial fixed point in a twofold orbitally degenerate Anderson impurity model

Cited by in corpus (17)

• The numerical renormalization group method for quantum impurity systems
• Non-abelian symmetries in tensor networks: a quantum symmetry space approach
• Modeling the Unconventional Superconducting Properties of Expanded A${}_3$C${}_{60}$ Fullerides
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• Parquet decomposition calculations of the electronic self-energy
• Universal transport signatures in two-electron molecular quantum dots: gate-tunable Hund's rule, underscreened Kondo effect and quantum phase transitions
• Numerical renormalization group study of two-channel three-impurity triangular clusters
• Kondo effects in a triangular triple quantum dot: NRG study in the whole region of the electron filling
• Ferromagnetism and Superconductivity in Carbon-Based Systems
• Kondo effects in a triangular triple quantum dot with lower symmetries
• Pseudogap and singlet formation in cuprate and organic superconductors
• Non-Fermi-liquid behavior in quantum impurity models with superconducting channels
• Complementary views on electron spectra: From Fluctuation Diagnostics to real space correlations
• Numerical Renormalization Group for Impurity Quantum Phase Transitions: Structure of Critical Fixed Points
• Natural Orbital-Based Lanczos Method for Anderson Impurity Models
• Quantum Critical Point between Two-Channel Kondo and Fermi-Liquid Phases
• Computing local multipoint correlators using the numerical renormalization group