Data Analysis Molecular Beam Epitaxy Electron Microscopy Spectroscopy Scanning Tunneling Microscopy Angle-Resolved Photoemission Spectroscopy Measurement Precision Atom-Resolved Microscopy Time-Resolved Experiments Laboratory Experiments Synchrotron Radiation X-ray Analysis Photoemission Spectroscopy Resonant Inelastic X-ray Scattering Stern-Gerlach Experiment X-ray Diffraction Ultrafast Spectroscopy Ultracold Atoms X-ray Lasers X-ray Microscopy Magnetization Measurements Cryogenics Light-Shining through a Wall Laser Technology Noise Reduction Methods Collider Experiments Measurement Methods X-ray Scattering Gravity Measurement Acoustic Levitation Resonant X-ray Techniques Data Acquisition Scanning Tunneling Microscope
Acoustic-levitation experiments show surface contamination sets the direction of charge exchange between ostensibly identical materials.
