Enhanced magnetic anisotropy of Mn12-acetate

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:301

Article

Seo, DM ; Meenakshi, V ; Teizer, W ; Zhao, H ; Dunbar, KR

关键词: Mn-12-acetate;    thin film;    blocking temperature;    magnetic anisotropy;   

DOI  :  10.1016/j.jmmm.2005.06.005

来源: Elsevier

【 摘 要 】

Thin films of the single molecule magnet [Mn12O12(CH3COO)(16)(H2O)(4)] center dot 2CH(3)COOH center dot 4H(2)O (Mn-12-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 Mn-12-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 T-B > 10 K at low magnetic fields, indicating an enhanced magnetic anisotropy. (c) 2005 Elsevier B.V. All rights reserved.

【 授权许可】

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