Quasi-Two-Dimensional Diffusive Random Laser Action
β Scribed by Gottardo, Stefano; Cavalieri, Stefano; Yaroshchuk, Oleg; Wiersma, Diederik S.
- Book ID
- 118228418
- Publisher
- The American Physical Society
- Year
- 2004
- Tongue
- English
- Weight
- 957 KB
- Volume
- 93
- Category
- Article
- ISSN
- 0031-9007
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π SIMILAR VOLUMES
In one dimension, the emergence of non-equilibrium net currents is characteristic for periodically driven systems with broken spatial-reversal symmetry. We show that a similar effect also exists in two-dimensional random systems due to inevitable local symmetry breaking in the potential landscape. W
Plateaux in the Hall effect have been observed in heavily doped nΓ·-GaAs wires with a mobility as low as 0.15 m2/V s and widths of 200 nm and 800nm. The observed plateaux are strongly dependent on sample width and electron temperature. The usual vanishing of the longitudinal resistance is not seen. P