Growth and magnetism of self-organized arrays of Fe(110) wires formed by deposition on kinetically grooved W(110)

SURFACE SCIENCE

卷:601

Article; Proceedings Paper

Borca, B. ; Fruchart, O. ; Cheynis, F. ; Hasegawa, M. ; Meyer, C.

关键词: epitaxial growth;    iron;    tungsten;    molybdenum;    nanowires;    self-organization;    RHEED patterns;    magnetic anisotropy;   

DOI  :  10.1016/j.susc.2007.06.023

来源: Elsevier

【 摘 要 】

Homoepitaxy of W(1 1 0) and Mo(1 1 0) is performed in a kinetically-limited regime to yield a nanotemplate in the form of a uniaxial array of hills and grooves aligned along the [0 0 1] direction. The topography and organization of the grooves were studied with RHEED and STM. The nanofacets, of type {2 1 0}, are tilted similar to 18 degrees away from (1 1 0). The lateral period could be varied from 4 to 12 nm by tuning the deposition temperature. Magnetic nanowires were formed in the grooves by deposition of Fe at 150 degrees C on such templates. Fe/W wires display an easy axis along [0 0 1] and a mean blocking temperature T-B approximate to 100 K. (C) 2007 Elsevier B.V. All rights reserved.

【 授权许可】

Free