A Tunable Anomalous Hall Effect in a Non-Ferromagnetic System

We measure the low-field Hall resistivity of a magnetically-doped two-dimensional electron gas as a function of temperature and electrically-gated carrier density. Comparing these results with the carrier density extracted from Shubnikov-de Haas oscillations reveals an excess Hall resistivity that increases with decreasing temperature. This excess Hall resistivity qualitatively tracks the paramagnetic polarization of the sample, in analogy to the ferromagnetic anomalous Hall effect. The data are consistent with skew-scattering of carriers by disorder near the crossover to localization

A Comparison of Children\u27s Ability to Define and Apply Phonics Terms

The purposes of the present study are: 1) to investigate whether or not children can use phonics as a tool in reading without knowing abstract terms; 2) to compare high and low level readers on their abilities to define phonics terms; 3) to compare high and low level readers on their abilities to apply phonics terms; and 4) to determine the relationship between the determination and application of phonics terms