Effect of Mn Thickness on the Mn-Ge Phase Formation During Reactions of 50 Nm and 210 Nm Thick Mn Films Deposited on Ge (111) Substrate
Defect and diffusion forum/Diffusion and defect data, solid state data Part A, Defect and diffusion forum(2012)
摘要
An alternative solution for producing logic devices in microelectronics is spintronics (SPIN TRansport electrONICS). It relies on the fact that in a magnetic layer, the electrical current can be spin polarized. To fabricate such components, a material whose electronic properties depend on its magnetic state is needed. The Mn-Ge system presents a lot of phases with different magnetic properties, which can be used for spintronics. The most interesting phase among the Mn-Ge system is Mn5Ge3 because of its stability at high temperatures, its Curie temperature which is close to room temperature and its ability of injecting spin-polarized electrons into semiconductors. In this paper, we have combined Reflection High-Energy Electron Diffraction (RHEED) and X-ray Diffraction (XRD), to study the sequence of formation of MnxGey phases during reactive diffusion of both a 50 nm and a 210 nm thick Mn films deposited by Molecular-Beam Epitaxy (MBE) on Ge (111).
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关键词
Spintronics,Reactive diffusion,Mn-Germanides,RHEED,XRD in-situ
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