反応性スパッタリング法によるε‐,η‐Mn窒素化合物薄膜の作製とその磁気的・電気的特性

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タイトル別名
  • Magnetic and Electrical Properties of .EPSILON.- and .ETA.-Mn Nitride Thin Films Formed by the Reactive Sputtering Method.
  • 反応性スパッタリング法によるε-,η-Mn窒素化合物薄膜の作製とその磁気的・電気的特性
  • ハンノウセイ スパッタリングホウ ニ ヨル イプシロン イータ Mn チッソ カゴウブツ ハクマク ノ サクセイ ト ソノ ジキテキ デンキテキ トクセイ

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Polycrystalline thin films with an oriented direction of ε-Mn4N along the (111) axis and η-Mn3N2 along the (113) axis were prepared as a single phase by the RF reactive magnetron sputtering method on glass substrates. It was clarified by XPS spectral analysis that nitrogen atoms in Mn-N compounds act as donor atoms in terms of the electrical/magnetic properties of the films. The ε-Mn4N film was a single-phase perovskite-type crystal with lattice parameter 0.385 nm, and this film had the properties of ferrimagnetism, with 1.1 μB per unit cell, and of a metallic film, with electrical conductivity of 1.6×104 Ω-1m-1. The η-Mn3N2 film was face center tetragonal (a = 0.420 nm, c = 0.413 nm) and had the properties of antiferromagnetism, with 1.4 μB per unit cell, and of a semiconductor flm, with electrical conductivity of 4.2×103 Ω-1m-1.

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