Room Temperature Study of the Magnetic Moment of Ultra-Thin Fe on GaAs(100) and InAs(100)

摘要

Due to the need to integrate magnetic materials onto semiconductor (SC) electronics, much of the current research on thin magnetic films focuses on the Fe/GaAs system [1-6]. Fe is an attractive candidate for spin injection because of its high Curie temperature. However, interface morphological and interdiffusion effects of the Fe/SC system are often neglected when considering the magnetic moment of ultra-thin Fe layers. We studied the two systems Fe/GaAs(100) and the closely related Fe/InAs(100) [7,8] to determine the Fe magnetic moment as a function of thickness.