Long-Range Order in Electronic Transport Through Disordered Metal Films

• Published in: Science (American Association for the Advancement of Science) Vol. 319; no. 5867; pp. 1226 - 1229
• Main Authors: Aigner, S, Pietra, L. Della, Japha, Y, Entin-Wohlman, O, David, T, Salem, R, Folman, R, Schmiedmayer, J
• Format: Journal Article
• Language: English
• Published: Washington, DC American Association for the Advancement of Science 29.02.2008; The American Association for the Advancement of Science
• Subjects: Atoms; Atoms & subatomic particles; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Conductivity; Electric current; Electric currents; Electrical properties of specific thin films; Electrical resistivity; Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures; Electrons; Exact sciences and technology; Geometric planes; Grain size; Magnetic fields; Magnetism; Metal films; Metals; Metals and metallic alloys; Micrometers; Microscopes; Physics; Grain size; Defect density; Gold; Disordered systems; Visualization; Ultracold atom; Long-range order; Polycrystals; Current fluctuations; Metallic thin films; Long range interaction; Domain structure; Transition elements; Transport processes; Diffusion length

Ultracold atom magnetic field microscopy enables the probing of current flow patterns in planar structures with unprecedented sensitivity. In polycrystalline metal (gold) films, we observed long-range correlations forming organized patterns oriented at ±45° relative to the mean current flow, even at...