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In this paper we report on the structural and magnetic properties of GeMn layers grown on Ge(001). We show that for the optimized Mn concentration (6%) and for optimized growth temperature (close to 130 °C), GeMn samples exhibit a high Curie temperature (higher than 400 K) and Anomalous Hall Effect up to room temperature. Our GeMn layers grown at low temperature (70 °C to 130 °C) are composed of vertical Mn‐rich nano‐colums. Samples grown at temperatures higher than 130 °C contain GeMn nanoclusters. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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Devillers et al. (2006) studied this question.
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