Effect of lattice strain on cobalt ferrite Co0.75Fe2.25O4(111) thin films

Patel Ritesh; Tainosho Takeshi; Hisamatsu Yuki; Sharmin Sonia; Kita Eiji; Yanagihara Hideto

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Effect of lattice strain on cobalt ferrite Co0.75Fe2.25O4(111) thin films

机译：晶格应变对钴铁氧体Co0.75Fe2.25O4（111）薄膜的影响

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We report the optimum conditions for the epitaxial growth of Co0.75Fe2.25O4(CFO) (111) thin films with x = 0.75 on an alpha-Al2O3(0001) substrate via reactive RF magnetron sputtering. The lattice strain evaluated by X-ray diffraction measurements is as small as 0.11% in spite of the large lattice mismatch between CFO(111) and alpha-Al2O3(0001). The CFO(111) thin films grown under the optimal conditions exhibit magnetic anisotropy with the easy axis of magnetization perpendicular to the films. The induced uniaxial anisotropy energy can be quantitatively explained by the magnetoelastic effect. (C) 2017 The Japan Society of Applied Physics

机译：我们报告了通过反应性射频磁控溅射在α-Al2O3（0001）衬底上外延生长x = 0.75的Co0.75Fe2.25O4（CFO）（111）薄膜的最佳条件。尽管CFO（111）和α-Al2O3（0001）之间存在较大的晶格失配，但通过X射线衍射测量评估的晶格应变仍可低至0.11％。在最佳条件下生长的CFO（111）薄膜表现出磁各向异性，易磁化轴垂直于薄膜。感应的单轴各向异性能可以由磁弹性效应定量地解释。（C）2017日本应用物理学会

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《Japanese journal of applied physics》 |2017年第5期|053001.1-053001.5|共5页
作者
Patel Ritesh; Tainosho Takeshi; Hisamatsu Yuki; Sharmin Sonia; Kita Eiji; Yanagihara Hideto;
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Univ Tsukuba, Grad Sch Pure & Appl Sci, Div Appl Phys, Tsukuba, Ibaraki 3058573, Japan;

Univ Tsukuba, Grad Sch Pure & Appl Sci, Div Appl Phys, Tsukuba, Ibaraki 3058573, Japan;

Univ Tsukuba, Grad Sch Pure & Appl Sci, Div Appl Phys, Tsukuba, Ibaraki 3058573, Japan;

Univ Tsukuba, Grad Sch Pure & Appl Sci, Div Appl Phys, Tsukuba, Ibaraki 3058573, Japan;

Univ Tsukuba, Grad Sch Pure & Appl Sci, Div Appl Phys, Tsukuba, Ibaraki 3058573, Japan;

Univ Tsukuba, Grad Sch Pure & Appl Sci, Div Appl Phys, Tsukuba, Ibaraki 3058573, Japan;

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Effect of lattice strain on cobalt ferrite Co0.75Fe2.25O4(111) thin films

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