摘要: The magnetic susceptibility of donor centers in semiconductors is calculated for the case small interactions between closely adjacent donors. A hydrogenic model assumed centers. random distribution centers, and variation energy interaction with separation distance pairs donors taken into consideration. twofold modification Curie law (which correct independent donors) predicted by resulting expression, namely. a curvature as well decrease slope plot versus inverse temperature. Both these effects increase density, becoming appreciable silicon 10/ sup 17/-l0/sup 18/ donors/cm/sup 3/ germanium range around l0/sup 16/ 3/. theory good agreement measurements. (auth)