Reducing average grain and domain size in high-coercivity Co/Pd perpendicular magnetic recording media through seedlayer engineering

N. J. Speetzen; Bethanie J Stadler

doi:10.1063/1.1855206

Reducing average grain and domain size in high-coercivity Co/Pd perpendicular magnetic recording media through seedlayer engineering

N. J. Speetzen, Bethanie J Stadler

Electrical and Computer Engineering

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

6 Scopus citations

Abstract

InSn seedlayers for CoPd multilayered media were engineered using dopants (Pd, O) to achieve grain size of 7.8±1.8 nm (σ=23%) and virgin magnetic cluster size of less than 65 nm. HN =-5 kOe and Hc =12.2 kOe make this media promising for extremely high-density recording. These parameters were all realized with room-temperature depositions without annealing. Media with O-doped 2-nm InSn seedlayers without other adhesion layers achieved Hc =6.2 kOe, which will be beneficial in reducing spacing loss. There is evidence that the engineered seedlayers also reduce the anisotropy dispersion and therefore the switching field distributions of these media.

Original language	English (US)
Article number	10N118
Journal	Journal of Applied Physics
Volume	97
Issue number	10
DOIs	https://doi.org/10.1063/1.1855206
State	Published - May 15 2005

Bibliographical note

Funding Information:
The authors would like to acknowledge the support of the National Science Foundation (ECS-0300209) through the GOALI program. The authors would also like to thank Chris Corwin of Lake Shore Cryotronics, Inc. for his help with the high field VSM measurements.

Access

10.1063/1.1855206

Fingerprint Dive into the research topics of 'Reducing average grain and domain size in high-coercivity Co/Pd perpendicular magnetic recording media through seedlayer engineering'. Together they form a unique fingerprint.

Cite this

@article{7ba0fcbe8dd442a2a31eb0ae6f10a877,

title = "Reducing average grain and domain size in high-coercivity Co/Pd perpendicular magnetic recording media through seedlayer engineering",

abstract = "InSn seedlayers for CoPd multilayered media were engineered using dopants (Pd, O) to achieve grain size of 7.8±1.8 nm (σ=23%) and virgin magnetic cluster size of less than 65 nm. HN =-5 kOe and Hc =12.2 kOe make this media promising for extremely high-density recording. These parameters were all realized with room-temperature depositions without annealing. Media with O-doped 2-nm InSn seedlayers without other adhesion layers achieved Hc =6.2 kOe, which will be beneficial in reducing spacing loss. There is evidence that the engineered seedlayers also reduce the anisotropy dispersion and therefore the switching field distributions of these media.",

author = "Speetzen, {N. J.} and Stadler, {Bethanie J}",

note = "Funding Information: The authors would like to acknowledge the support of the National Science Foundation (ECS-0300209) through the GOALI program. The authors would also like to thank Chris Corwin of Lake Shore Cryotronics, Inc. for his help with the high field VSM measurements. ",

year = "2005",

month = may,

day = "15",

doi = "10.1063/1.1855206",

language = "English (US)",

volume = "97",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

number = "10",

}

TY - JOUR

T1 - Reducing average grain and domain size in high-coercivity Co/Pd perpendicular magnetic recording media through seedlayer engineering

AU - Speetzen, N. J.

AU - Stadler, Bethanie J

N1 - Funding Information: The authors would like to acknowledge the support of the National Science Foundation (ECS-0300209) through the GOALI program. The authors would also like to thank Chris Corwin of Lake Shore Cryotronics, Inc. for his help with the high field VSM measurements.

PY - 2005/5/15

Y1 - 2005/5/15

N2 - InSn seedlayers for CoPd multilayered media were engineered using dopants (Pd, O) to achieve grain size of 7.8±1.8 nm (σ=23%) and virgin magnetic cluster size of less than 65 nm. HN =-5 kOe and Hc =12.2 kOe make this media promising for extremely high-density recording. These parameters were all realized with room-temperature depositions without annealing. Media with O-doped 2-nm InSn seedlayers without other adhesion layers achieved Hc =6.2 kOe, which will be beneficial in reducing spacing loss. There is evidence that the engineered seedlayers also reduce the anisotropy dispersion and therefore the switching field distributions of these media.

AB - InSn seedlayers for CoPd multilayered media were engineered using dopants (Pd, O) to achieve grain size of 7.8±1.8 nm (σ=23%) and virgin magnetic cluster size of less than 65 nm. HN =-5 kOe and Hc =12.2 kOe make this media promising for extremely high-density recording. These parameters were all realized with room-temperature depositions without annealing. Media with O-doped 2-nm InSn seedlayers without other adhesion layers achieved Hc =6.2 kOe, which will be beneficial in reducing spacing loss. There is evidence that the engineered seedlayers also reduce the anisotropy dispersion and therefore the switching field distributions of these media.

UR - http://www.scopus.com/inward/record.url?scp=20944443593&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=20944443593&partnerID=8YFLogxK

U2 - 10.1063/1.1855206

DO - 10.1063/1.1855206

M3 - Article

AN - SCOPUS:20944443593

VL - 97

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 10

M1 - 10N118

ER -

Reducing average grain and domain size in high-coercivity Co/Pd perpendicular magnetic recording media through seedlayer engineering

Abstract

Bibliographical note

Access

Other files and links

Cite this