A magnetic evaluation of interaction and noise characteristics of CoNiCr thin films

P. I. Mayo; K. O'Grady; P. E. Kelly; J. Cambridge; I. L. Sanders; T. Yogi; R. W. Chantrell

doi:10.1063/1.348263

A magnetic evaluation of interaction and noise characteristics of CoNiCr thin films

P. I. Mayo^*, K. O'Grady, P. E. Kelly, J. Cambridge, I. L. Sanders, T. Yogi, R. W. Chantrell

^*Corresponding author for this work

Research output: Contribution to journal › Review article › peer-review

Abstract

The nature of media recording noise in metallic, quasiparticulate thin films is principally related to the grain size, crystallographic orientation, and intergranular exchange and magnetostatic coupling in the films. In this study the results of a magnetic evaluation of magnetostatic interactions in CoNiCr thin films of varying Cr underlayer thickness are reported. The evaluation is undertaken through the measurement and comparison of remanence curves. The results presented here indicate enhanced cooperative switching as Cr underlayer thickness is reduced from 2000 to 100 Å, with a strong correlation between signal-to-noise measurements. In addition, the transition from principally exchange-coupled to quasiparticulate thin films, as Cr underlayer thickness increases, has been established.<lz> <lz> <lz> <lz> <lz> <lz>.

Original language	English
Pages (from-to)	4733-4735
Number of pages	3
Journal	Journal of Applied Physics
Volume	69
Issue number	8
DOIs	https://doi.org/10.1063/1.348263
Publication status	Published - 1991

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10.1063/1.348263

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@article{1ab0267dbd7f44b19e00eed131f1bee0,

title = "A magnetic evaluation of interaction and noise characteristics of CoNiCr thin films",

abstract = "The nature of media recording noise in metallic, quasiparticulate thin films is principally related to the grain size, crystallographic orientation, and intergranular exchange and magnetostatic coupling in the films. In this study the results of a magnetic evaluation of magnetostatic interactions in CoNiCr thin films of varying Cr underlayer thickness are reported. The evaluation is undertaken through the measurement and comparison of remanence curves. The results presented here indicate enhanced cooperative switching as Cr underlayer thickness is reduced from 2000 to 100 {\AA}, with a strong correlation between signal-to-noise measurements. In addition, the transition from principally exchange-coupled to quasiparticulate thin films, as Cr underlayer thickness increases, has been established. .",

author = "Mayo, {P. I.} and K. O'Grady and Kelly, {P. E.} and J. Cambridge and Sanders, {I. L.} and T. Yogi and Chantrell, {R. W.}",

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journal = "Journal of Applied Physics",

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T1 - A magnetic evaluation of interaction and noise characteristics of CoNiCr thin films

AU - Mayo, P. I.

AU - O'Grady, K.

AU - Kelly, P. E.

AU - Cambridge, J.

AU - Sanders, I. L.

AU - Yogi, T.

AU - Chantrell, R. W.

PY - 1991

Y1 - 1991

N2 - The nature of media recording noise in metallic, quasiparticulate thin films is principally related to the grain size, crystallographic orientation, and intergranular exchange and magnetostatic coupling in the films. In this study the results of a magnetic evaluation of magnetostatic interactions in CoNiCr thin films of varying Cr underlayer thickness are reported. The evaluation is undertaken through the measurement and comparison of remanence curves. The results presented here indicate enhanced cooperative switching as Cr underlayer thickness is reduced from 2000 to 100 Å, with a strong correlation between signal-to-noise measurements. In addition, the transition from principally exchange-coupled to quasiparticulate thin films, as Cr underlayer thickness increases, has been established. .

AB - The nature of media recording noise in metallic, quasiparticulate thin films is principally related to the grain size, crystallographic orientation, and intergranular exchange and magnetostatic coupling in the films. In this study the results of a magnetic evaluation of magnetostatic interactions in CoNiCr thin films of varying Cr underlayer thickness are reported. The evaluation is undertaken through the measurement and comparison of remanence curves. The results presented here indicate enhanced cooperative switching as Cr underlayer thickness is reduced from 2000 to 100 Å, with a strong correlation between signal-to-noise measurements. In addition, the transition from principally exchange-coupled to quasiparticulate thin films, as Cr underlayer thickness increases, has been established. .

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DO - 10.1063/1.348263

M3 - Review article

AN - SCOPUS:36449004254

VL - 69

SP - 4733

EP - 4735

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 8

ER -

A magnetic evaluation of interaction and noise characteristics of CoNiCr thin films

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