Fabrication and magnetic properties of new antiferromagnetic/ferromagnetic multilayers containing NiMn alloys

含 NiMn 合金的新型反铁磁/铁磁多层膜的制备和磁性能

• 批准号: 11650684
• 负责人: NAKAYAMA Noriaki
• 金额: $ 2.24万
• 依托单位: Yamaguchi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650684/
• 关键词: Thin Films; Superlattice; Magnetic Materials; Vacuum Evaporation; X-ray diffraction; Antiferromagnetic alloy; Exchange Anisotropy; Interlayer magnetic coupling; 多層膜; 単原子層交互蒸着; スパータリング; 結晶配向性

We have investigated Ni-Mn and NiMn/Co multilayered films to develop the new antiferromagnetic-ferromagnetic superlattice films containing NiMn alloy layers. By depositing the Ni/Mn multilayers on the Au(111) textured films, high quality textured Ni/Mn superlatttices are obtained. Based on their structural and magnetic characterizations, it was found that antiferromagnetic Ni-Mn alloy thin films can be obtained by depositing "mono-layer" thick Ni and Mn. Also by changing the ratio of the deposition thicknesses in the "mono-layer" range, it is possible to prepare fcc alloy films in the whole concentration range of Ni-Mn system. Furthermore, we could fabricate NiMn/Co and NiMn/Ni superlattice films counposed of ferromagnetic Co (or Ni) and Ni-Mn alloy layers prepared by the above method. The crystallographic coherence length in the growth direction is fairly long. Magnetically, NiMn/Co superlatttices prepared in this study show somewhat different properties from those prepared by the conventional sputtering method.

我们对Ni-Mn和NiMn/Co多层膜进行了研究，以发展含有NiMn合金层的新型反铁磁-铁磁超晶格薄膜。通过在Au（111）织构薄膜上沉积Ni/Mn多层膜，获得了高质量的织构Ni/Mn超晶格。通过对Ni-Mn合金薄膜的结构和磁性的研究，发现采用“单层”沉积方法可以获得反铁磁Ni-Mn合金薄膜。在“单层”范围内，通过改变沉积厚度的比例，可以在Ni-Mn系的整个浓度范围内制备面心立方结构的合金膜。此外，我们还可以制备由铁磁Co（或Ni）和Ni-Mn合金层构成的NiMn/Co和NiMn/Ni超晶格薄膜。在生长方向上的晶体学相干长度相当长。在磁性方面，本研究中制备的NiMn/Co超晶格显示出与常规溅射方法制备的超晶格有些不同的性质。

项目成果

T.Shinjo and N.Nakayama: "金属人工格子中のエピタキシーと格子歪み"表面科学. 21・6. 332-339 (2000)

T. Shinjo 和 N. Nakayama：“金属人工晶格中的外延和晶格畸变”表面科学 21・6（2000）。

N.Nakayama, Y.Hasuo, M.Okahara, T.Mizota and Y.Ueda: "Exchange anisotropy and interlayer exchange coupling in fcc-NiMn/Permalloy multilayers"J.Magn.Soc.Jpn. 23. 170-172 (1999)

N.Nakayama、Y.Hasuo、M.Okahara、T.Mizota 和 Y.Ueda：“fcc-NiMn/坡莫合金多层中的交换各向异性和层间交换耦合”J.Magn.Soc.Jpn。

N.Nakayama,Y.Hasuo,M.Okahara,T.Mizota and Y.Ueda: "Exchange anisotropy and interlayer exchange coupling in fcc-NiMn/Permalloy multilayers"J.Magn.Soc.Jpn.. 23. 170-172 (1999)

N.Nakayama、Y.Hasuo、M.Okahara、T.Mizota 和 Y.Ueda：“fcc-NiMn/坡莫合金多层中的交换各向异性和层间交换耦合”J.Magn.Soc.Jpn.. 23. 170-172 (

T.Shinjo and N.Nakayama: "Epitaxy and Lattice Distortion in Metallic Superlattices"表面科学. 21・6. 332-339 (2000)

T. Shinjo 和 N. Nakayama：“金属超晶格中的外延和晶格畸变”表面科学 21・6。

T.Shinjo and N.Nakayama: "Epitaxy and Lattice Distortion ixt Metallic Superlattices"Hyomen Kagaku. 21. 332-339 (2000)

T.Shinjo 和 N.Nakayama：“外延和晶格畸变 ixt 金属超晶格”Hyomen Kagaku。