Publication detail

In-situ magnetic nano-patterning of Fe films grown on Cu(100)

ZAMAN, S. DVOŘÁK, P. RITTER, R. BUCHSBAUM, A. STICKLER, D. OEPEN, H. SCHMID, M. VARGA, P.

Original Title

In-situ magnetic nano-patterning of Fe films grown on Cu(100)

Type

journal article in Web of Science

Language

English

Original Abstract

Metastable paramagnetic face-centered cubic (fcc) Fe films grown on a Cu(100) single crystal at room temperature can be transformed to the ferromagnetic body-centered cubic (bcc) structure by ion irradiation. We have employed this technique to write small ferromagnetic patches by Ar irradiation through a gold coated SiN mask with regularly arranged 80-nm diameter holes, which as placed on top of the as-prepared fcc Fe films. Nanopatterning was performed on both 8-monolayer (ML) Fe films grown in ultrahigh vacuum as well as 22-ML films stabilized by dosing carbon monoxide during growth. The structural transformation of these nano-patterned films was investigated using scanning tunneling microscopy. In both 8 and 22-ML fcc Fe films, the bcc needles are found to protrude laterally out of the irradiated part of the sample, limiting the resolution of the technique to a few 10 nm. The magnetic transformation was confirmed by magnetic force microscopy.

Keywords

ferromagnetic-paramagnetic transitions; ion beam effects; iron; magnetic force microscopy; magnetic thin films; scanning tunnelling microscopy

Authors

ZAMAN, S.; DVOŘÁK, P.; RITTER, R.; BUCHSBAUM, A.; STICKLER, D.; OEPEN, H.; SCHMID, M.; VARGA, P.

RIV year

2011

Released

27. 7. 2011

ISBN

0021-8979

Periodical

Journal of Aplied Physics

Year of study

110

Number

2

State

United States of America

Pages from

024309-1

Pages to

024309-6

Pages count

6