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.

Czech title

In situ magnetická transfomace vrstev Fe nanesených na Cu(100)

English title

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

Type

journal article in Web of Science

Language

en

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.

Czech abstract

Článek se zabývá transforací BCC – FCC železa v tenkých vrstách Fe nanesených na Cu(100).

English 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 in Czech

ferromagnetická-paramagnetická transfomace; vliv iontového svazku; železo; MFM, STM

Keywords in English

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

RIV year

2011

Released

27.07.2011

ISSN

0021-8979

Volume

110

Number

2

Pages from–to

024309-1–024309-6

Pages count

6

BIBTEX


@article{BUT75966,
  author="Sameena Shah {Zaman} and Petr {Viewegh} and Robert {Ritter} and Andreas {Buchsbaum} and Daniel {Stickler} and Hans Peter {Oepen} and Michael {Schmid} and P. {Varga},
  title="In-situ magnetic nano-patterning of Fe films grown on Cu(100)",
  year="2011",
  volume="110",
  number="2",
  month="July",
  pages="024309-1--024309-6",
  issn="0021-8979"
}