ArticleNature nanotechnology2024
Tunable topological phases in nanographene-based spin-1/2 alternating-exchange Heisenberg chains.
Article in Nature nanotechnology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- IntrinsicAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Article
- Quantum Spin-1/2 Rings Built From [2]Triangulene Molecular Units.Angewandte Chemie (International ed. in English) · 2026Article
- Engineering Ultrastable Intrinsic Radicals: Graphene Quantum Dots With NIR-II Emission for Dynamic Deep-Tissue Bioimaging.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Metal-Free Ferromagnetism in Triangulene Two-Dimensional Frameworks.Journal of the American Chemical Society · 2026Article
- DesignerNational science review · 2026Review
- Engineering single topological π-conjugated polymers and interpolating topological solitons by end-group modification.National science review · 2026Article
- Exploring electron spin dynamics in spin chains using defects as a quantum probe.Nature communications · 2026Article
- Controlled magnetic bistability of a helical non-Kekulé hydrocarbon on a Au(111) surface.Nature communications · 2026Article
- Symmetry-protected topological order in a 100-site spin chain on a digital quantum computer.NPJ quantum information · 2026Article
- Magnetic Coupling in Non-Kekulé Diradical Hydrocarbons via Multiconfigurational Pair-Density Functional Theory.Journal of chemical theory and computation · 2025Article
- Hamiltonian Learning of Triplon Excitations in an Artificial Nanoscale Molecular Quantum Magnet.Nano letters · 2025Article
- Frustration-Induced Many-Body Degeneracy in Spin -1/2 Molecular Quantum Rings.Journal of the American Chemical Society · 2025Article
- Topological Junction States in Graphene Nanoribbons: A Route to Topological Chemistry.Nano letters · 2025Article
- Solution-phase synthesis of Clar's goblet and elucidation of its spin properties.Nature chemistry · 2025Article
- Spin excitations in nanographene-based antiferromagnetic spin-1/2 Heisenberg chains.Nature materials · 2025Article
- A Route toward the On-Surface Synthesis of Organic Ferromagnetic Quantum Spin Chains.Journal of the American Chemical Society · 2025Article
- On-surface synthesis of Heisenberg spin-1/2 antiferromagnetic molecular chains.Science advances · 2025Article
- Magnetic Moment and Spin-State Transitions in Twisted Graphene Nanostructures.The journal of physical chemistry letters · 2025Article
- Physics and Chemistry of Two-Dimensional Triangulene-Based Lattices.Accounts of chemical research · 2025Article
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Authors and funding
11 authors.
Funding
Abstract
Unlocking the potential of topological order in many-body spin systems has been a key goal in quantum materials research. Despite extensive efforts, the quest for a versatile platform enabling site-selective spin manipulation, essential for tuning and probing diverse topological phases, has persisted. Here we utilize on-surface synthesis to construct spin-1/2 alternating-exchange Heisenberg chains by covalently linking Clar's goblets-nanographenes each hosting two antiferromagnetically coupled spins. Using scanning tunnelling microscopy, we exert atomic-scale control over chain lengths, parities and exchange-coupling terminations, and probe their magnetic response via inelastic tunnelling spectroscopy. Our investigation confirms the gapped nature of bulk excitations in the chains, known as triplons. Their dispersion relation is extracted from the spatial variation of tunnelling spectral amplitudes. Depending on the parity and termination of chains, we observe varying numbers of in-gap spin-1/2 edge excitations, reflecting the degeneracy of distinct topological ground states in the thermodynamic limit. By monitoring interactions between these edge spins, we identify the exponential decay of spin correlations. Our findings present a phase-controlled many-body platform, opening avenues toward spin-based quantum devices.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.