Magnetism and morphology of Co nanocluster superlattices on GdAu2/Au(111)-(13 x 13)
| Title | Magnetism and morphology of Co nanocluster superlattices on GdAu2/Au(111)-(13 x 13) |
| Publication Type | Journal Article |
| Year of Publication | 2014 |
| Authors | Cavallin, A, Fernandez, L, Ilyn, M, Magana, A, Ormaza, M, Matena, M, Vitali, L, Ortega, JE, Grazioli, C, Ohresser, P, Rusponi, S, Brune, H, Schiller, F |
| Journal | Physical review. B, Condensed matter and materials physics |
| Volume | 90 |
| ISSN | 1098-0121 |
| Abstract | We present a comprehensive study of the magnetism and morphology of an ultrahigh density array of Co nanoclusters self-assembled on the single atomic layer GdAu2 on Au(111) template surface. Combining scanning tunneling microscopy, x-ray magnetic circular dichroism, and magneto-optical Kerr effect measurements, we reveal a significant enhancement of the perpendicular magnetic anisotropy energy for noncoalesced single atomic layer nanoclusters compared to Co/Au(111). For coverages well beyond the onset of coalescence, we observe room-temperature in-plane magnetic remanence. |
| DOI | 10.1103/PhysRevB.90.235419 |
