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Magnetic Properties of Matter
Proceedings of The National School "New Developments and Magnetism's Aplications
Magneto-optical investigations of ferromagnetic half-metallic Heusler compounds Co2MnGe and Co2MnSn
Toward room temperature ferro-magnetism of Ge:Mn systems
We investigate the magnetic properties of Mn(x)Ge(1-x)/Ge(100) films. We show that the choice of growth temperature
and Mn content is crucial for achieving optimal magnetic performance. With a substrate temperature of 160°C during
film deposition, and Mn concentration between 2.7% and 4.4%, hysteresis is observed up to about 250 K. However, the
magnetic loop maintains a saturating behaviour at high fields up to room temperature. For larger Mn concentrations
the magnetic response is strongly suppressed, suggesting a possible segregation of manganese
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