Impact Factor0.0

DOI number:10.1063/1.4733343

Journal:Appl. Phys, Lett.

Abstract:A bulk ring probe made of pure iron wire with diameter of 0.125 mm was prepared for spin-polarized scanning tunneling microscopy at room temperature in ultrahigh vacuum. The layerwise antiferromagnetic spin contrast of 2.8 atomic monolayers (ML) Mn/4.5 ML Co/Cu(001) observed with such a probe revealed a spin asymmetry of 14% and a signal-to-noise ratio of 1.8. Areas of reversed spin contrast on the same atomic layer of Mn were observed and attributed to the influence from underlying Co steps and islands. This demonstrates the simplicity of preparation and capability of such bulk Fe ring probes.

Indexed by:Journal paper

Document Type:J

Volume:101

Issue:1

Page Number:012404

Translation or Not:no

Date of Publication:2012-07-03

Included Journals:SCI

First Author:Chii-Bin Wu

Correspondence Author:Wolfgang Kuch

All the Authors:Jiaming Song