Influence of stray fields on the switching-field distribution for bit-patterned media based on pre-patterned substrates
(2014) In Applied Physics Letters 105(13).- Abstract
- Using a direct imaging method, we experimentally investigate the reversal of magnetic islands in a bit-patterned media sample based on a pre-patterned substrate. Due to systematic variation of the island distances in the media, we are able to study the influence of the dipolar interaction on the switching-field distribution of the island ensemble. The experimental findings are explained by an analytical magnetostatic model that allows us to quantify the different components of the demagnetizing field in the system and to distinguish intrinsic and dipolar broadening of the switching-field distribution. Besides the well-known dipolar broadening due to stray fields from neighboring islands, we find strong influence from the magnetized trench... (More)
- Using a direct imaging method, we experimentally investigate the reversal of magnetic islands in a bit-patterned media sample based on a pre-patterned substrate. Due to systematic variation of the island distances in the media, we are able to study the influence of the dipolar interaction on the switching-field distribution of the island ensemble. The experimental findings are explained by an analytical magnetostatic model that allows us to quantify the different components of the demagnetizing field in the system and to distinguish intrinsic and dipolar broadening of the switching-field distribution. Besides the well-known dipolar broadening due to stray fields from neighboring islands, we find strong influence from the magnetized trench material on the island switching. (C) 2014 Author(s). (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4790365
- author
- Pfau, Bastian LU ; Guenther, C. M. ; Guehrs, E. ; Hauet, T. ; Hennen, T. ; Eisebitt, S. and Hellwig, O.
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics Letters
- volume
- 105
- issue
- 13
- article number
- 132407
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000343031700041
- scopus:84907806058
- ISSN
- 0003-6951
- DOI
- 10.1063/1.4896982
- language
- English
- LU publication?
- yes
- id
- b5950445-c0ec-4530-8115-5b010a7b4250 (old id 4790365)
- date added to LUP
- 2016-04-01 10:35:29
- date last changed
- 2022-01-26 00:45:05
@article{b5950445-c0ec-4530-8115-5b010a7b4250,
abstract = {{Using a direct imaging method, we experimentally investigate the reversal of magnetic islands in a bit-patterned media sample based on a pre-patterned substrate. Due to systematic variation of the island distances in the media, we are able to study the influence of the dipolar interaction on the switching-field distribution of the island ensemble. The experimental findings are explained by an analytical magnetostatic model that allows us to quantify the different components of the demagnetizing field in the system and to distinguish intrinsic and dipolar broadening of the switching-field distribution. Besides the well-known dipolar broadening due to stray fields from neighboring islands, we find strong influence from the magnetized trench material on the island switching. (C) 2014 Author(s).}},
author = {{Pfau, Bastian and Guenther, C. M. and Guehrs, E. and Hauet, T. and Hennen, T. and Eisebitt, S. and Hellwig, O.}},
issn = {{0003-6951}},
language = {{eng}},
number = {{13}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Applied Physics Letters}},
title = {{Influence of stray fields on the switching-field distribution for bit-patterned media based on pre-patterned substrates}},
url = {{http://dx.doi.org/10.1063/1.4896982}},
doi = {{10.1063/1.4896982}},
volume = {{105}},
year = {{2014}},
}