Local probe of fractional edge states of S=1 Heisenberg spin chains

Abstract

Spin chains are among the simplest physical systems in which electron-electron interactions induce novel states of matter. Here we show that the combination of atomic scale engineering and spectroscopic capabilities of state of the art scanning tunnel microscopy enables probing the fractionalized edge states of individual atomic scale S=1 spin chains. These edge states arise from the topological order of the ground state in the Haldane phase. We also show that the Haldane gap and the spin-spin correlation length can be measured with the same technique.

5 pages, 3 figures

References in corpus (5)

• Magnetic Cluster Excitations
• Local control of single atom magneto-crystalline anisotropy
• Excitation of local magnetic moments by tunnelling electrons
• The even-odd effect in short antiferromagnetic Heisenberg chains
• Rigorous Solution of the Spin-1 Quantum Ising Model with Single-ion Anisotropy

Cited by in corpus (15)

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• Spin wave imaging in atomically designed nanomagnets
• Local Probes for Charge-Neutral Edge States in Two-Dimensional Quantum Magnets
• Spin decoherence of magnetic atoms on surfaces
• Probing Magnetic Excitations and Correlations in Single and Coupled Spin Systems with Scanning Tunneling Spectroscopy
• Characterizing the Haldane phase in quasi-one-dimensional spin-1 Heisenberg antiferromagnets
• Static and Dynamic Magnetic Response of Fragmented Haldane-like Spin Chains in Layered Li3Cu2SbO6
• Unusual excitations and double-peak specific heat in a bond-alternating spin-$1$ $K$-$\Gamma$ chain
• Hubbard model for spin-1 Haldane chains
• Quantum theory of spin waves in finite chiral spin chains
• Exact zero modes in frustrated Haldane chains
• Relaxation and decoherence of qubits encoded in collective states of engineered magnetic structures
• Dynamic crystallization in a quantum Ising chain
• Local dynamics and detection of topology in spin-1 chains
• Promising regimes for the observation of topological degeneracy in spin chains