D. M. Seo

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Publications (2)3.84 Total impact

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    Article: Enhanced Magnetic Anisotropy of Mn12-acetate
    D. M. Seo, V. Meenakshi, W. Teizer, H. Zhao, K. R. Dunbar
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    ABSTRACT: Thin films of the Single Molecule Magnet (Mn12-acetate) have been fabricated on a Si-substrate by the Dip-and-Dry method, a simple and robust technique. Atomic force microscopy and X-ray photoelectron spectroscopy characterizations reveal that homogeneous, thin films of a few molecular layers with smoothness at the molecular level are deposited. Significant changes in magnetic properties of Mn12-acetate exposed to the same solvent were observed in zero-field-cooled and field-cooled magnetization, as well as ac-susceptibility measurements. The blocking temperature was found to increase to TB > 10 K at low magnetic fields, indicating an enhanced magnetic anisotropy. Comment: 14 pages, 4 figures
    06/2005;
  • Source
    Article: Mn12-acetate film pattern generated by photolithography methods
    K. Kim, D. M. Seo, J. Means, V. Meenakshi, W. Teizer, H. Zhao, K. R. Dunbar
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    ABSTRACT: We demonstrate a straightforward way to lithographically fabricate Mn <sub>12</sub> -acetate thin film patterns on Si / Si O <sub>2</sub> surfaces, a significant step in light of the chemical volatility of this organic complex. Atomic force micrographs show low surface roughness. X-ray photoelectron spectroscopy data and magnetic measurements of the Mn <sub>12</sub> -acetate film indicate properties reminiscent of crystalline Mn <sub>12</sub> -acetate, suggesting that this approach can be used to fabricate lithographically patterned devices of Mn <sub>12</sub> -acetate.
    Applied Physics Letters 11/2004; · 3.84 Impact Factor

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