SPIN-DEPENDENT TUNNELING EFFECTS ON MAGNETIC NANOSTRUCTURES

Abstract

Abstract The contrast mechanism of spin-polarized scanning tunneling spectroscopy (SP-STS) is demontrated on in-plane magnetized Gd islands grown on W (110) using Fe-coated tips. The use of Gd-coated tips enables the imaging of the antiferromagnetic domain structure of Fe nanowires being perpendicularly magnetized grown on a stepped W(110) substrate. The influence of an external magnetic field on the nanowire domain structure is demonstrated. It is shown that the antiferromagnetic domain structure of the Fe nanowires strongly depends on the miscut of the W(110) substrate. While at high miscut the magnetization direction alternates between adjacent DL stripes it was found to alternate within single Fe DL stripes at low miscut. Nanoscale Fe islands with a height of two atomic layers were found to be single domain particles.

Keywords: spin-polarized scanning tunneling spectroscopy magnetic nanowires single domain particles

Received: 23 October 2000
Accepted manuscript online:

PACS:	6116P
	6146
	7780D

Fund: Project supported by the Deutsche Forschungsgemeinschaft (Grant No. Wi 1277/3), from the GIF (Grant No. I-550-184.14/97), and from the BMBF (Grant No. 13N7647).

Cite this article:

M. Getzlaff, M. Bode, A. Kubetzka, O. Pietzsch, R. Wiesendanger SPIN-DEPENDENT TUNNELING EFFECTS ON MAGNETIC NANOSTRUCTURES 2001 Chinese Physics 10 186

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SPIN-DEPENDENT TUNNELING EFFECTS ON MAGNETIC NANOSTRUCTURES

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