Effect of oxygen surfactant on the magnetic and structural properties of Co films grown on Cu(110)

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It was found that atomically flat Co(110) film could be grown on Cu(110) using O as a surfactant. To obtain detailed knowledge on the effect of O on the growth, as well as on the magnetic properties of Co overlayer, we carried out an investigation on this system using Auger Electron Spectroscopy (AES), Low Energy Electron Diffraction (LEED), Surface Magneto-Optic Kerr Effect (SMOKE), and Scanning Tunneling Microscopy (STM). With O as a surfactant, the initial growth of Co (< 1 ML) results in a flat monolayer structure. When the Co is thicker than 1 ML, three-dimensional clusters begin to form. ... continued below

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Ling, W.L.; Qiu, Z.Q.; Takeuchi, O.; Ogletree, D.F. & Salmeron, M. April 13, 2000.

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It was found that atomically flat Co(110) film could be grown on Cu(110) using O as a surfactant. To obtain detailed knowledge on the effect of O on the growth, as well as on the magnetic properties of Co overlayer, we carried out an investigation on this system using Auger Electron Spectroscopy (AES), Low Energy Electron Diffraction (LEED), Surface Magneto-Optic Kerr Effect (SMOKE), and Scanning Tunneling Microscopy (STM). With O as a surfactant, the initial growth of Co (< 1 ML) results in a flat monolayer structure. When the Co is thicker than 1 ML, three-dimensional clusters begin to form. These clusters become ordered islands at 3 ML Co and coalesce at about 5 ML Co. Above 5 ML Co, layer-by-layer growth resumes. No Cu segregation is observed. SMOKE studies at room temperature show that the Co film is magnetic above about 5 ML Co, with the magnetization easy axis along the [001] direction. On the other hand, without using oxygen as a surfactant, Co grows three-dimensionally on Cu(110). The Co overlayer has its easy magnetization axis along the [001] direction, but the onset of the magnetization was observed at 11 ML Co at room temperature.

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  • Journal Name: Physical Review B. Condensed Matter and Materials Physics; Journal Volume: 63; Journal Issue: 024408; Other Information: Journal Publication Date:1/1/2001

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  • Report No.: LBNL--45470
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 775110
  • Archival Resource Key: ark:/67531/metadc719276

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 13, 2000

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  • Sept. 29, 2015, 5:31 a.m.

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  • April 5, 2016, 1:17 p.m.

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Ling, W.L.; Qiu, Z.Q.; Takeuchi, O.; Ogletree, D.F. & Salmeron, M. Effect of oxygen surfactant on the magnetic and structural properties of Co films grown on Cu(110), article, April 13, 2000; California. (digital.library.unt.edu/ark:/67531/metadc719276/: accessed October 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.