Pietzsch O, Kubetzka A, Bode M, Wiesendanger R
Institute of Applied Physics and Microstructure Research Center, University of Hamburg, Jungiusstrasse 11, D-20355 Hamburg, Germany.
Phys Rev Lett. 2000 May 29;84(22):5212-5. doi: 10.1103/PhysRevLett.84.5212.
We have performed spin-polarized scanning tunneling spectroscopy of dipolar antiferromagnetically coupled Fe nanowires with a height of two atomic layers and an average separation of 8 nm grown on stepped W(110). Domain walls within the nanowires exhibit a significantly reduced width when pinned at structural constrictions. The lateral spin reorientation in the direction perpendicular to the wires has been studied with subnanometer spatial resolution. It is found that the spin canting in the Fe nanowires monotonously increases towards the step edges.
我们对生长在阶梯状W(110)上的高度为两个原子层、平均间距为8 nm的偶极反铁磁耦合铁纳米线进行了自旋极化扫描隧道光谱研究。当纳米线内的畴壁固定在结构收缩处时，其宽度显著减小。我们以亚纳米空间分辨率研究了垂直于纳米线方向的横向自旋重取向。研究发现，铁纳米线中的自旋倾斜朝着台阶边缘单调增加。
