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Journal Articles

Perpendicular magnetic anisotropy of thin films

Takanashi, Koki; Seki, Takeshi*

Magune, 19(3), p.100 - 106, 2024/06

Perpendicular magnetic anisotropy of thin films currently plays an important role in spintronics as well as magnetic recording. Regarding perpendicular magnetic anisotropy, in this article, the fundamentals, the research history, and the recent research trends are reviewed, showing specific examples with perpendicular magnetization such as magnetic multilayers, ordered alloy films, rare earth-transition metal amorphous alloy films, and inhomogeneous or granular films. The physical origins for perpendicular magnetic anisotropy, including interface anisotropy due to structural symmetry breaking, magnetoelastic anisotropy due to strain, bulk-type magnetocrystalline anisotropy, and directional pair ordering of atoms, are discussed in each example.

Journal Articles

Growth-orientation dependence of magnetic properties of Cr-based multilayers with $$^{119}$$Sn monatomioc layers

Jiko, Norihiro*; Almokhtar, M.*; Takeda, Masayasu; Suzuki, Junichi; Shinjo, Teruya*; Mibu, Ko*

Journal of Magnetism and Magnetic Materials, 272-276(Part2), p.1233 - 1234, 2004/05

The growth-orientation dependence of magnetism of Cr/Sn and Fe/Cr/Sn/Cr multilayers was studied. For Fe/Cr/Sn/Cr multilayers, reduction of Cr magnetic moments was found in both (011)- and (001)-orientated samples, and the effect is larger in the former than the latter. In Cr/Sn multilayers, the (011)-oriented sample with the Cr layer thickness (${it t}$$$_{Cr}$$$$geq$$) of 80$AA has a commensurate antiferromagnetic structure, while the (001)-oriented samples with {it t}$$$_{Cr}$$$$geq$$ 80AA have a spin-density-wave structure with the wave vector perpendicular to the film plane.

Journal Articles

Alternate multilayer deposition from ammonium amphiphiles and titanium dioxide crystalline nanosheets using the Langmuir-Blodgett technique

Yamaki, Tetsuya; Asai, Keisuke*

Langmuir, 17(9), p.2564 - 2567, 2001/05

https://doi.org/10.1021/la0016423
 Times Cited Count：44 Percentile：92.20(Chemistry, Multidisciplinary)

A new type of TiO$$_{2}$$ nanosheet-organic complex multilayer film was successfully prepared by the Langmuir-Blodgett technique. Surface pressure-area curves demonstrated that a stable monolayer of dioctadecyldimethylammonium bromide (DODAB) was formed on an aqueous suspension of TiO$$_{2}$$ nanosheets derived from an exfoliated layered titanate, H$$_{x}$$Ti$$_{2-x/4}$$□$$_{x/4}$$O$$_{4}$$・H$$_{2}$$O (x$$sim$$0.7; □, vacancy). The hybrid monolayer of the ammonium amphiphiles and the TiO$$_{2}$$ nanosheet was quantitatively transferred onto a hydrophobic quartz plate to form a multilayer film. X-ray diffraction measurements confirmed the formation of an ordered structure of DODAB/TiO$$_{2}$$ with an interlayer distance of 3.4 nm.

Journal Articles

X-ray scattering study of interfacial roughness correlation in Mo/Si multilayers fabricated by ion beam sputtering

Ulyanenkov, A.*; Matsuo, R.*; Omote, Kazuhiko*; Inaba, Katsuhiko*; Harada, Jimpei*; Ishino, Masahiko; Nishii, Masanobu; Yoda, Osamu

Journal of Applied Physics, 87(10), p.7255 - 7260, 2000/05

https://doi.org/10.1063/1.372977
 Times Cited Count：33 Percentile：75.46(Physics, Applied)

no abstracts in English

Oral presentation

Microscopic theory of non-equilibrium spin transport at metal-insulator interfaces

Yamamoto, Kei; McKeever, B.*

no journal, , 

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