鐡錳鐡薄膜成長於銅三金之晶體結構與磁性
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2009
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Abstract
我們使用中能量電子繞射儀,低能量電子繞射儀,磁光科爾效應來決定Fe/Mn/fcc-like Fe/Cu3Au(001)之成長模式,晶體結構及磁性。與Fe/Mn/Cu3Au(001)來比較,在磁性上有一些有趣的發現。即使多了fcc鐡的緩衝層,在低厚度時錳的晶體結構仍然是fcc.造成在垂直於晶體表面方向矯頑磁力的增強以及磁易軸翻轉的臨界厚度偏移可歸因於fcc鐡的緩衝層具有垂直於晶體表面方向的磁異向性.
The growth, crystalline structure and magnetism of Fe/Mn/fcc-like Fe/Cu3Au(001) are characterized by medium energy electron diffraction (MEED), low energy electron diffraction (LEED) and magneto-optical Kerr effect (MOKE). Compared with Fe/Mn/Cu3Au(001), there are some interestingfindings in magnetism of Fe/Mn/fcc-like Fe/Cu3Au(001). With the fcc-like Fe buffer layer, the crystalline structure of Mn/fcc-like Fe/Cu3Au(001) is still face-centered cubic(fcc) structure at low coverage. The key factor responsible for the extraordinarily enhanced coercivity in perpendicular direction of the Fe overlayer and shifted critical thickness of spin-reorientation transition (SRT) is attibuted to the perpendicular magnetization of fcc-like Fe buffer layer.
The growth, crystalline structure and magnetism of Fe/Mn/fcc-like Fe/Cu3Au(001) are characterized by medium energy electron diffraction (MEED), low energy electron diffraction (LEED) and magneto-optical Kerr effect (MOKE). Compared with Fe/Mn/Cu3Au(001), there are some interestingfindings in magnetism of Fe/Mn/fcc-like Fe/Cu3Au(001). With the fcc-like Fe buffer layer, the crystalline structure of Mn/fcc-like Fe/Cu3Au(001) is still face-centered cubic(fcc) structure at low coverage. The key factor responsible for the extraordinarily enhanced coercivity in perpendicular direction of the Fe overlayer and shifted critical thickness of spin-reorientation transition (SRT) is attibuted to the perpendicular magnetization of fcc-like Fe buffer layer.
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薄膜, 多層膜, 磁性, thin film, multilayer, magnetism