Strain Manipulation of Magnetic Anisotropy in Room-Temperature Ferrimagnetic Quadruple Perovskite CeCu3Mn4O12,ACS Applied Electronic Materials

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Strain Manipulation of Magnetic Anisotropy in Room-Temperature Ferrimagnetic Quadruple Perovskite CeCu3Mn4O12
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2019-10-22 , DOI: 10.1021/acsaelm.9b00547
Kei Shigematsu _{1,

2} , Keisuke Shimizu ₁ , Kazumasa Yamamoto ₁ , Takumi Nishikubo ₁ , Yuki Sakai _{1,

2} , Sergey A. Nikolaev _{1,

3} , Hena Das _{1,

3} , Masaki Azuma _{1,

2}

Affiliation

Epitaxial growth of quadruple perovskite oxides presents an opportunity to expand their functionality and may lead to device applications. CeCu₃Mn₄O₁₂ epitaxial thin film grown on YAlO₃(110) exhibits a Neel temperature exceeding 400 K and metallic transport properties at room temperature, which can be accounted for by the high valence states of the constituting Ce⁴⁺ and Mn^3.5+ stabilized by the oxidative deposition process. Uniaxial magnetic anisotropy is induced in CeCu₃Mn₄O₁₂, whose easy axis lies parallel to orthorhombic YAlO₃[10] where CeCu₃Mn₄O₁₂ is most elongated. Perpendicular magnetic anisotropy can be realized in compressively strained CeCu₃Mn₄O₁₂ by inserting a small YCaAlO₄ buffer layer. This trend of magnetic anisotropy in strained CeCu₃Mn₄O₁₂ was in good agreement with theoretical calculations.

中文翻译：

室温亚铁磁性四方钙钛矿CeCu ₃ Mn ₄ O _12中的磁各向异性应变控制

四方钙钛矿氧化物的外延生长提供了扩展其功能性的机会，并可能导致器件应用。在YAlO ₃（110）上生长的CeCu ₃ Mn ₄ O ₁₂外延薄膜具有超过400 K的Neel温度和室温下的金属传输性能，这可以由构成Ce ⁴⁺和Mn ^3.5的高价态来解释。⁺通过氧化沉积过程稳定。CeCu ₃ Mn ₄ O ₁₂引起单轴磁各向异性，其易轴平行于正交晶体YAlO ₃ [10]，其中CeCu ₃ Mn₄ O ₁₂最伸长。通过插入小的YCaAlO ₄缓冲层，可以在压缩应变的CeCu ₃ Mn ₄ O _12中实现垂直磁各向异性。应变CeCu ₃ Mn ₄ O _12中的磁各向异性趋势与理论计算吻合良好。

更新日期：2019-10-23

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