期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 401, 期 -, 页码 506-510出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2015.10.030
关键词
Organic spintronics; Metal-organic interface
资金
- National Research Foundation of Korea (NRF) grant - Korea Government (MSIP) [2008-0062606(CELA-NCRC), 2010-0004614, 2013R1A1A2011326]
- National Research Foundation of Korea (NRF) grant - Korea Government (MOE) [2008-0062606(CELA-NCRC), 2010-0004614, 2013R1A1A2011326]
- KIST Institutional program [2E25450]
- Ministry of Science, ICT & Future Planning, Republic of Korea [2E25450] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2013R1A1A2011326, 2010-0004614] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The structural and magnetic properties of Co/C-60/pentacene and Co/C-60 thin film structures were investigated. Atomic force microscopy and x-ray reflectivity analysis show that the presence or absence of a pentacene buffer layer leads to a highly textured or randomly oriented C-60 layer, respectively. A Co film deposited on a randomly oriented C-60 layer penetrates into the C-60 layer when it is deposited at a slow deposition rate. The Co penetration can be minimized, regardless of the Co deposition rate, by growth on a highly textured and nanostructured C-60/pentacene layer. Vibrating sample magnetometry measurements show that the saturation magnetization of Co/C-60/pentacene is significantly reduced compared to that of Co/C-60. On the other hand, the Co penetration does not seem to have an effect on the magnetic properties, suggesting that the structural properties of the Co and C-60 layer, rather than the Co penetration into the organic C-60 layer, are critical to the magnetic properties of the Co/C-60. (C) 2015 Elsevier B.V. All rights reserved.
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