Chessboard-Type Domain Formation in Mn-Based Spinel Compounds

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  • Mn系スピネル酸化物におけるChessboard型分域構造の特徴
  • Mnケイ スピネル サンカブツ ニ オケル Chessboardガタ ブンイキ コウゾウ ノ トクチョウ

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Abstract

Nanometer-size columnar superstructures with a chessboard pattern in Mn-based spinels have been fabricated by harnessing the Jahn-Teller structural distortion. Transmission electron microscope images reveal that the fundamental building blocks are two types of long nanorods with the ∼4×∼4×∼70 nm3 in size, which are alternatively stacked in a way that the cross sectional and side views show chessboard and herringbone patterns, respectively. The strain induced by the Jahn-Teller distortion is discussed to result in this peculiar self-assembled nanostructure.

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