Suppression of transport anisotropy at the Anderson localization transition in three-dimensional anisotropic media
| Autor: | Antton Goïcoechea, John H. Page, Sergey E. Skipetrov |
|---|---|
| Přispěvatelé: | University of Manitoba [Winnipeg], Laboratoire de physique et modélisation des milieux condensés (LPM2C ), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Anderson localization Condensed matter physics FOS: Physical sciences 02 engineering and technology Acoustic wave Electron Disordered Systems and Neural Networks (cond-mat.dis-nn) Condensed Matter - Disordered Systems and Neural Networks 021001 nanoscience & nanotechnology 01 natural sciences 3. Good health 0103 physical sciences Ultrasonic sensor Matter wave [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] 010306 general physics 0210 nano-technology Anisotropy |
| Zdroj: | Physical Review B Physical Review B, American Physical Society, 2020, 102 (22), pp.220201. ⟨10.1103/PhysRevB.102.220201⟩ |
| ISSN: | 2469-9950 2469-9969 |
| DOI: | 10.1103/PhysRevB.102.220201⟩ |
| Popis: | We study the transport of classical waves through three-dimensional (3D) anisotropic media close to the Anderson localization transition. Time-, frequency-, and position-resolved ultrasonic measurements are performed on anisotropic slab-shaped mesoglass samples to probe the dynamics and the anisotropy of the multiple scattering halo, and hence to investigate the influence of disorder on the nature of wave transport and its anisotropy. These experiments allow us to address conflicting theoretical predictions that have been made about whether or not the transport anisotropy is affected by the interference effects that lead to Anderson localization. We find that the transport anisotropy is significantly reduced as the mobility edge is approached---a behavior similar to the one predicted recently for matter waves in infinite anisotropic 3D media. Comment: 5 pages, 3 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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