Zobrazeno 1 - 10
of 133
pro vyhledávání: '"de Wjm Wim Jonge"'
Publikováno v:
Journal of Materials Research, 22(3), 569-572. Materials Research Society
Manganese (Mn) grows in a metastable expanded (c/a > 1) face-centered-tetragonal (fct) phase on thin fct-Co(001) template films. A layer-by-layer growth mode is observed for small Mn thicknesses. Antiferromagnetism (AFM) of fct-Mn is evidenced by the
Publikováno v:
Surface Science, 600(18), 4375-4379. Elsevier
Proceedings of the 23th European Conference on Surface Science, 3-8 july 2005, Berlin, Germany
Proceedings of the 23th European Conference on Surface Science, 3-8 july 2005, Berlin, Germany
Thin ordered layers of Al2O3 grown on a metallic Ni3Al(0 0 1) substrate were studied using UHV STM and LEED. The oxidn. of the substrate at 800 K and 1100 K forms different structural phases of Al2O3. Oxidn. of Ni3Al(0 0 1) at 800 K leads to a simple
Autor:
de Wjm Wim Jonge, JT Jürgen Kohlhepp
Publikováno v:
Physical Review Letters, 96(23), 237201-1/4. American Physical Society
The structural and magnetic properties of Mn prepared on single crystalline face-centered-tetragonal (fct) Co(001) were investigated. Mn grows coherently up to at least 50 monolayers (ML) and adopts a metastable expanded fct(001) phase [c/a=1.055(5)]
Autor:
B Bert Koopmans, R Reinder Coehoorn, JT Jürgen Kohlhepp, van M Maarten Kampen, de Wjm Wim Jonge
Publikováno v:
Journal of Physics : Condensed Matter, 17(43), 6823-6834. Institute of Physics
Electron thermalization and electron–phonon relaxation in metals can be studied by measuring the transient change in sample reflectivity after excitation with a femtosecond laser pulse. This paper describes experiments on ferromagnetic nickel thin
Publikováno v:
Journal of Magnetism and Magnetic Materials. :494-497
We have studied the local magnetization dynamics in exchange-biased magnetic tunnel junction (MTJ) elements, by time-resolved magneto-optical Kerr effect measurements. We have observed a strong spatial dependence of the frequency and damping of the p
Publikováno v:
Proceedings of the 5th International Symposium on Metallic Multilayers, 7-11 June 2004, Boulder, Colorado, U.S.A., 154-157
STARTPAGE=154;ENDPAGE=157;TITLE=Proceedings of the 5th International Symposium on Metallic Multilayers, 7-11 June 2004, Boulder, Colorado, U.S.A.
STARTPAGE=154;ENDPAGE=157;TITLE=Proceedings of the 5th International Symposium on Metallic Multilayers, 7-11 June 2004, Boulder, Colorado, U.S.A.
We present a study of the thermal stability of tunneling spin polarization in Al / AlO x /ferromagnet junctions based on the spin-polarized tunneling technique, in which the Zeeman-split superconducting density of states in the Al electrode is used a
Publikováno v:
Applied Physics Letters, 86(10):102508, 102508-1/3. American Institute of Physics
A very important process step in the fabrication of magnetic tunnel junctions (MTJs) is the application of a modest anneal step in the presence of a high magnetic field. Roughly, a doubling of the magnetoresistance (MR) ratio is commonly observed. We
59Co NMR observation of monolayer resolved hyperfine fields in ultrathin epitaxial fct-Co(001) films
Publikováno v:
Journal of Magnetism and Magnetic Materials, 286, 390-393. Elsevier
59 Co nuclear magnetic resonance measurements have been performed on thin epitaxial FCT-Co(0 0 1) films and the effect of an interface on the Co hyperfine field has been measured with monolayer resolution. Four different sub-lines could be measured w
Publikováno v:
Proceedings of the 5th International Symposium on Metallic Multilayers (MML 2004), 7-11 June 2004, Boulder, Colorado, U.S.A., 220-224
STARTPAGE=220;ENDPAGE=224;TITLE=Proceedings of the 5th International Symposium on Metallic Multilayers (MML 2004), 7-11 June 2004, Boulder, Colorado, U.S.A.
STARTPAGE=220;ENDPAGE=224;TITLE=Proceedings of the 5th International Symposium on Metallic Multilayers (MML 2004), 7-11 June 2004, Boulder, Colorado, U.S.A.
A study of the influence of roughness at an antiferromagnet (AFM)/ferromagnet (FM) interface on the magnetic exchange coupling in epitaxial Co(0 0 1)/FCT-Mn(0 0 1) bilayers is presented. Co atomic monolayer thickness oscillations of the coercivity (H
Publikováno v:
Europhysics Letters (EPL). 64:77-83
We present strong experimental evidence for a controlled room temperature movement of single atoms of Co incorporated in a Cu(001) surface under the influence of a scanning tunneling microscope (STM) tip. The Co atoms move preferentially along such 1