Anomalous Hall effect measurements on capped bit-patterned media

M. Ranjbar; S. N. Piramanayagam; S. K. Wong; R. Sbiaa; T. C. Chong

doi:10.1063/1.3645634

Anomalous Hall effect measurements on capped bit-patterned media

M. Ranjbar, S. N. Piramanayagam^*, S. K. Wong, R. Sbiaa, T. C. Chong

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The role of a small exchange coupling between isolated single-domain magnetic dots through a thin continuous film-in a system called capped bit-patterned media (CBPM)-has been studied experimentally using anomalous Hall effect measurements. The exchange coupling, provided by the thin continuous layer, was effective in reducing the switching field distribution (SFD) and coercivity under optimized conditions. SFD increases and coercivity decreases for very high values of exchange coupling due to the formation of multi-domains. Besides reducing SFD, the CBPM also exhibit potential writability advantage at higher densities, indicating their potential application as bit-patterned media.

Original language	English
Article number	142503
Journal	Applied Physics Letters
Volume	99
Issue number	14
DOIs	https://doi.org/10.1063/1.3645634
Publication status	Published - Oct 3 2011
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Anomalous Hall effect measurements on capped bit-patterned media",

abstract = "The role of a small exchange coupling between isolated single-domain magnetic dots through a thin continuous film-in a system called capped bit-patterned media (CBPM)-has been studied experimentally using anomalous Hall effect measurements. The exchange coupling, provided by the thin continuous layer, was effective in reducing the switching field distribution (SFD) and coercivity under optimized conditions. SFD increases and coercivity decreases for very high values of exchange coupling due to the formation of multi-domains. Besides reducing SFD, the CBPM also exhibit potential writability advantage at higher densities, indicating their potential application as bit-patterned media.",

author = "M. Ranjbar and Piramanayagam, {S. N.} and Wong, {S. K.} and R. Sbiaa and Chong, {T. C.}",

note = "Funding Information: M. Ranjbar would like to express gratitude for support from the A*STAR (SINGA) graduate scholarship program.",

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AU - Wong, S. K.

AU - Sbiaa, R.

AU - Chong, T. C.

N1 - Funding Information: M. Ranjbar would like to express gratitude for support from the A*STAR (SINGA) graduate scholarship program.

PY - 2011/10/3

Y1 - 2011/10/3

N2 - The role of a small exchange coupling between isolated single-domain magnetic dots through a thin continuous film-in a system called capped bit-patterned media (CBPM)-has been studied experimentally using anomalous Hall effect measurements. The exchange coupling, provided by the thin continuous layer, was effective in reducing the switching field distribution (SFD) and coercivity under optimized conditions. SFD increases and coercivity decreases for very high values of exchange coupling due to the formation of multi-domains. Besides reducing SFD, the CBPM also exhibit potential writability advantage at higher densities, indicating their potential application as bit-patterned media.

AB - The role of a small exchange coupling between isolated single-domain magnetic dots through a thin continuous film-in a system called capped bit-patterned media (CBPM)-has been studied experimentally using anomalous Hall effect measurements. The exchange coupling, provided by the thin continuous layer, was effective in reducing the switching field distribution (SFD) and coercivity under optimized conditions. SFD increases and coercivity decreases for very high values of exchange coupling due to the formation of multi-domains. Besides reducing SFD, the CBPM also exhibit potential writability advantage at higher densities, indicating their potential application as bit-patterned media.

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Anomalous Hall effect measurements on capped bit-patterned media

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