Applied Physics Letters · 2012 · 47 citations · 23 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsCrystal StructureSolid State PhysicsMagnetic Properties Of SolidsMagnetism In SolidsMagnetism Of Inorganic CompoundsSuperconducting MaterialsTopological MaterialsAngle-resolved Photoelectron SpectroscopyAngle-resolved Photoemission SpectroscopyMagnetic PropertiesParamagnetic SpeciesQuantum InterferenceSuperconducting Quantum Interference Device MagnetometryTopological Insulators
The crystal structure, electronic, and magnetic properties of Gadolinium (Gd) substituted Bi2Se3—represented by Bi1.98Gd0.02Se3—were investigated systematically by scanning tunneling microscopy, angle-resolved photoemission spectroscopy, and superconducting quantum interference device. Gd dopants with valence of 3+ were mainly found to substitute Bi atoms. Each Gd3+ ion has a magnetic moment as large as ∼6.9μB in the bulk paramagnetic state.
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<i>Colloquium</i>: Topological insulators
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