Above-room-temperature ferromagnetic Ni2+-doped ZnO thin films prepared from colloidal diluted magnetic semiconductor quantum dots
作者： Dana A. Schwartz , Kevin R. Kittilstved , Daniel R. Gamelin
DOI: 10.1063/1.1785872
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摘要: We report the preparation of spin-coated nickel-doped zinc oxide nanocrystalline thin films using high-quality colloidal diluted magnetic semiconductor (DMS) quantum dots as solution precursors. These show robust ferromagnetism with Curie temperatures above 350K and 300K saturation moments up to 0.1Bohr magnetons per nickel. results demonstrate a step toward use zero-dimensional DMS nanocrystals building blocks for bottom-up construction more complex ferromagnetic nanostructures.
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