Skip to main content Accessibility help
×
Home
Hostname: page-component-544b6db54f-d2wc8 Total loading time: 0.319 Render date: 2021-10-19T22:18:14.338Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

Atomically Layered Structures for Perpendicular Magnetic Information Storage

Published online by Cambridge University Press:  15 February 2011

Bruce M. Lairson
Affiliation:
Materials Science Department, Rice University, Houston TX.
M. R. Visokay
Affiliation:
Materials Science and Engineering Department, Stanford University, Stanford, CA.
R. Sinclair
Affiliation:
Materials Science and Engineering Department, Stanford University, Stanford, CA.
S. M. Brennan
Affiliation:
Materials Science and Engineering Department, Stanford University, Stanford, CA.
B. M. Clemens
Affiliation:
Materials Science and Engineering Department, Stanford University, Stanford, CA.
J. Perez
Affiliation:
Censtor Corporation, San Jose, CA.
C. Baldwin
Affiliation:
Censtor Corporation, San Jose, CA.
Get access

Abstract

Layered structures can possess a high volumetric density of interfaces, which can result in novel magnetic properties. We report magnetic characteristics of two types of atomically layered structures, (001) oriented intermetallics with the CuAu(I) crystal structure and (111) oriented artificial multilayers. C-axis oriented superlattices of PtFe, PtCo, PdFe and PdCo with the layered CuAu(I) structure, possess large magnetic anisotropies and novel magneto-optic properties relative to the corresponding random alloys. These films are produced by annealing, with tetragonality and magnetic anisotropy developing in a fashion which depends on the initial bilayer period and annealing parameters. (111) oriented artificially grown Pd/CoCr multilayers are reported for perpendicular magnetic recording applications. Using a perpendicular contact probe transducer, the multilayers exhibit two times the readback signal of CoCr media. The multilayers can be made with low roughness suitable for contact recording, and can generate narrow readback pulses with large amplitude. Many aspects of Pd/Co performance, such as overwrite, can be predictably optimized for a given set of transducer properties. The reported results show that compositionally modulated structures can be made which have a wide variety of useful properties for perpendicular hard disk and magneto-optic recording.

Type
Research Article
Copyright
Copyright © Materials Research Society 1994

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] Howard, K. et al., these proceedings.Google Scholar
[2] Lairson, B. M., Visokay, M. R., Sinclair, R., and Clemens, B. M., Appl. Phys. Lett. 62, 639 (1993).CrossRefGoogle Scholar
[3] Visokay, M. R., Lairson, B. M., Clemens, B. M. and Sinclair, R., these proceedings.Google Scholar
[4] Lairson, B. M., Visokay, M. R., Marinero, E. E., Sinclair, R., and Clemens, B. M., J. Appl. Phys. 74, 1922 (1993).CrossRefGoogle Scholar
[5] Lairson, B. M. and Clemens, B. M., Appl. Phys. Lett. 63, 1438 (1993).CrossRefGoogle Scholar
[6] Suzuki, Y. and Katayama, T., MORIS’92 Proceedings 29 (1993).Google Scholar
[7] DeHaan, P., Meng, Q., Katayama, T., and Lodder, J. C., J. Magn. and Magn. Mat. vol. 113, 29, (1992).CrossRefGoogle Scholar
[8] Carcia, P. F., Meinhaldt, A. D., and Suna, A., Appl. Phys. Lett. vol. 47, 178 (1985).CrossRefGoogle Scholar
[9] Lairson, B. M., Perez, J., and Baldwin, C., to appear in Appl. Phys. Lett.Google Scholar
[10] Mapps, D. J., et al. J. Magn. and Magn. Mat. vol. 120, 305 (1993).CrossRefGoogle Scholar

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Atomically Layered Structures for Perpendicular Magnetic Information Storage
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Atomically Layered Structures for Perpendicular Magnetic Information Storage
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Atomically Layered Structures for Perpendicular Magnetic Information Storage
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *