Observation of spin reorientation in layered manganites La1.2Sr1.8(Mn1-yRuy)2O7 (0.0{less-than or slanted equal to}y{less-than or slanted equal to}0.2) by Lorentz transmission electron microscopy

X. Z. Yu, M. Uchida, Y. Onose, J. P. He, Y. Kaneko, T. Asaka, K. Kimoto, Y. Matsui, T. Arima, Y. Tokura

研究成果: Article査読

10 被引用数 (Scopus)

抄録

The effect of Ru substitution for Mn in bilayered oxides La1.2Sr1.8(Mn1-yRuy)2O7 ( 0 {less-than or slanted equal to} y {less-than or slanted equal to} 0.2) was investigated by magnetization measurements and low-temperature Lorentz transmission electron microscopy. It was found that the magnetic anisotropy is controlled by the Ru content y and temperature T. The easy axis changes from 〈1 1 0〉 for the y = 0 crystal to the c-axis for y = 0.2, and it rotates away from the c-axis for the y = 0.05 and y = 0.07 crystals with decreasing temperature. Furthermore, maze-shaped magnetic domain structures were observed in the (0 0 1) thin crystals with 0.05 {less-than or slanted equal to} y {less-than or slanted equal to} 0.2. Changes in domain size and structure indicate that the uniaxial magnetic anisotropy becomes stronger as Ru content y increases.

本文言語English
ページ(範囲)391-396
ページ数6
ジャーナルJournal of Magnetism and Magnetic Materials
302
2
DOI
出版ステータスPublished - 2006 7
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

フィンガープリント 「Observation of spin reorientation in layered manganites La<sub>1.2</sub>Sr<sub>1.8</sub>(Mn<sub>1-y</sub>Ru<sub>y</sub>)<sub>2</sub>O<sub>7</sub> (0.0{less-than or slanted equal to}y{less-than or slanted equal to}0.2) by Lorentz transmission electron microscopy」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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