Contact Information kowonhee@ornl.gov 865.241.4415 orcid.org/0000-0002-6155-1485 Key Links Google Scholar Related Organizations Physical Sciences Directorate User Facilities Center for Nanophase Materials Sciences Nanomaterials Characterization Section Scanning Tunneling Microscopy Group Wonhee Ko User Download CV All Publications Realizing gapped surface states in the magnetic topological insulator MnBi2−xSbxTe4... Rational synthesis of atomically precise graphene nanoribbons directly on metal oxide surfaces... Observation of single-defect memristor in an MoS2 atomic sheet... Exploration of two surfaces observed in Weyl semimetal BaMnSb2... Resistivity of Surface Steps in Bulk-Insulating Topological Insulators... Noncontact Andreev Reflection as a Direct Probe of Superconductivity on the Atomic Scale... Understanding Heterogeneities in Quantum Materials... Reshaped Weyl fermionic dispersions driven by Coulomb interactions in MoTe2... Selective Antisite Defect Formation in WS2 Monolayers via Reactive Growth on Dilute W-Au Alloy Substrates... Statistical detection of Josephson, Andreev, and single quasiparticle currents in scanning tunneling microscopy... van der Waals Epitaxy Growth of Bi2Se3 on a Freestanding Monolayer Graphene Membrane: Implications for Layered Materials and ... Unidirectional growth of graphene nano-islands from carbon cluster seeds on Ge(1 1 0)... Magnetic states of atomic vacancies in graphite probed by scanning tunneling microscopy... Facile Size-Selective Defect Sealing in Large-Area Atomically Thin Graphene Membranes for Sub-Nanometer Scale Separations... Atomically thin half-van der Waals metals enabled by confinement heteroepitaxy... Atomically Precise PdSe 2 Pentagonal Nanoribbons... Enhancing the local conductivity of Cu films using temperature-assisted agglomerated Cu nanostructures... Atomic‐Scale Manipulation and In Situ Characterization with Scanning Tunneling Microscopy... Edge states and ballistic transport in zigzag graphene ribbons: The role of SiC polytypes... Accessing the Intrinsic Spin Transport In a Topological Insulator by Controlling the Crossover of Bulk-to-surface Conductance Tip-induced local strain on MoS2/graphite detected by inelastic electron tunneling spectroscopy... Detection of the Spin-Chemical Potential in Topological Insulators Using Spin-Polarized Four-Probe STM
