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Formation process and mechanism of iron-nitride compounds on Si(1 1 1)-7 × 7-CH3OH surface

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Abstract Fe atoms were deposited on Si(1 1 1)-7 × 7 restructured surface, which had been covered by CH3OH molecules. A newly formed surface is stabilized by a quasi-potential made by breaking, and adsorbed… Click to show full abstract

Abstract Fe atoms were deposited on Si(1 1 1)-7 × 7 restructured surface, which had been covered by CH3OH molecules. A newly formed surface is stabilized by a quasi-potential made by breaking, and adsorbed atoms or molecules can be stabilized by forming “quasi-compounds”. Then, aim to greatly enhance the magnetic properties of the memory units, nitriding experiments were implemented on the existing Fe compounds. With the in-situ observation of STM, a series of Fe3N structures make up the newly emerged iron-nitride compounds, showing good linear characteristics. By adjusting the concentration, this study further explored its formation process and compounds models.

Keywords: formation process; surface; iron nitride; nitride compounds

Journal Title: Chemical Physics Letters
Year Published: 2018

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