Real-Space Imaging of Triplon Excitations in Engineered Quantum Magnets
Robert Drost, Shawulienu Kezilebieke, José L. Lado, Peter Liljeroth
Abstract
Quantum magnets provide a powerful platform to explore complex quantum many-body phenomena. One example is triplon excitations, exotic many-body modes emerging from propagating singlet-triplet transitions. We engineer a minimal quantum magnet from organic molecules and demonstrate the emergence of dispersive triplon modes in one- and two-dimensional assemblies probed with scanning tunneling microscopy and spectroscopy. Our results provide the first demonstration of dispersive triplon excitations from a real-space measurement.
Topics & Concepts
PhysicsMagnetQuantumSpin (aerodynamics)Quantum tunnellingSpace (punctuation)Singlet stateCondensed matter physicsScanning tunneling microscopeAtomic physicsQuantum mechanicsComputer scienceExcited stateOperating systemThermodynamicsQuantum and electron transport phenomenaPhysics of Superconductivity and MagnetismQuantum many-body systems