Hwang, H. M. Shin, S. W. Kang, J. H. Lee, J. Lee, J. H. Song, J. H. Choi, J. -Y. Lee, H. H. Lee, H. S. 2024-01-21T02:33:33Z 2024-01-21T02:33:33Z 2021-08-31 2006-09 0374-4884 https://pubs.kist.re.kr/handle/201004/135223 Isolated epitaxial Co(5 nm <= t(Co) < 30 nm)/Cu nanostructures have been fabricated on a Si(001) substrate by using a nanoporous anodic aluminum-oxide (AAO) film as a mask during evaporation. The structural and the magnetic properties of the nanostructures are compared with those of as grown films. The results of X-ray diffraction confirm that both the film and the nanostructure have a fcc structure with a (001) surface and a Co[110]//Cu[110]//Si[001] crystallographic relation in the plane. The nanostructures with t(Co) > 10 nm show clear four-fold symmetry of the remanent magnetization in the plane, but due to dipole interactions among nanodots, their values are smaller than those of films. The nanostructure with t(Co) = 5 nm shows isotropic hysteresis loops while the film with the same thickness shows a four-fold symmetry. English KOREAN PHYSICAL SOC ANODIC ALUMINA MAGNETIC NANOSTRUCTURES ULTRATHIN FILMS COBALT FILMS PORE ARRAYS CU(001) GROWTH PHOTOEMISSION TEMPERATURE ANISOTROPY Fabrication of epitaxial fcc Co/Cu nanostructures/Si(001) Article 1 JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.49, no.3, pp.1016 - 1019 JOURNAL OF THE KOREAN PHYSICAL SOCIETY 49 3 1016 1019 scie scopus kci 000240570400036 2-s2.0-33749826348 Physics, Multidisciplinary Physics Article ANODIC ALUMINA MAGNETIC NANOSTRUCTURES ULTRATHIN FILMS COBALT FILMS PORE ARRAYS CU(001) GROWTH PHOTOEMISSION TEMPERATURE ANISOTROPY epitaxial nanostructures anisotropy