Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
Home
  • Home
Hostname: page-component-559fc8cf4f-lzpzj Total loading time: 0.225 Render date: 2021-02-26T08:29:50.694Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": false, "newCiteModal": false, "newCitedByModal": true }
EnglishFrançais
MRS Online Proceedings Library (OPL) MRS Online Proceedings Library (OPL)

Article contents

Cracking and Delamination of Heteroepitaxial Barium Hexaferrite Films

Published online by Cambridge University Press:  10 February 2011

S.A. Oliver ,
I. Kozulin ,
N.E. Mcgruer ,
S.D. Yoon  and
C. Vittoria
S.A. Oliver
Affiliation:
Center for Electromagnetic Research, Northeastern University, Boston, MA 02115, saoliver@neu.edu
I. Kozulin
Affiliation:
Department of Electrical and Computer Engineering, Northeastern University, Boston MA 02115.
N.E. Mcgruer
Affiliation:
Department of Electrical and Computer Engineering, Northeastern University, Boston MA 02115.
C. Vittoria
Affiliation:
Department of Electrical and Computer Engineering, Northeastern University, Boston MA 02115.
Corresponding
E-mail address:
saoliver@neu.edu
Get access

Abstract

Experimental results are shown for the structural and stress behaviors of c-axis oriented barium hexaferrite films on c-plane sapphire (Al2O3) substrates as a function of oxygen growth pressure and film thickness. It is shown that films deposited at 20 mTorr crack and delaminate at thicknesses above 15 µm, but that evidence for these large stresses is not apparent in either substrate curvature measurements or distortion of the c-axis lattice constant for thinner films (< 2 µm). In contrast, films (< 4 µm) deposited at 300 mTorr show large substrate curvatures that relax with increasing film thickness, in tandem with the formation of first large outgrowths, and then polycrystalline grains as the original c-axis film texture is randomized. Correlations between these observations are made to explain the complex evolution of properties in these films.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 619: Symposium L – Recent Developments in Oxide & Metal Epitaxy – Theory… , 2000 , 197
Copyright
Copyright © Materials Research Society 2000

Access options

Get access to the full version of this content by using one of the access options below.
If you should have access and can't see this content please contact technical support.

References

[1] Carosella, C.A., Chrisey, D.B., Lubitz, P., Horwitz, J.S., Dorsey, P., Seed, R. and Vittoria, C., J. Appl. Phys. 71, 5107 (1992).CrossRefGoogle Scholar
[2] Dorsey, P.C., Chrisey, D.B., Horwitz, J.S., Lubitz, P. and Auyeung, R.C.Y., IEEE Trans. Magn. 30, 4512 (1994).CrossRefGoogle Scholar
[3] Shinde, S.R., Ramesh, R., Lofland, S.E., Bhagat, S.M., Ogale, S.B., Sharman, R.P. and Venkatesan, T., Appl. Phys. Lett. 72, 3443 (1998).CrossRefGoogle Scholar
[4] Oliver, S.A., Chen, M.L., Kozulin, I. and Vittoria, C., J. Magn. Magn. Mat. 213, 326 (2000).CrossRefGoogle Scholar
[5] Thouless, M.D., IBM J. Res. Develop. 38, 367 (1994).CrossRefGoogle Scholar
[6] Dorsey, P.C., Qadri, S.B., Feldman, J.L., Horwitz, JS., Lubitz, P., Chrisey, D.B. and Ings, J.B., J. Appl. Phys. 79, 3517 (1996).CrossRefGoogle Scholar
[7] CRC Materials Science and Engineering Handbook, edited by Shackelford, J.F., pp. 308–314 (CRC Press, Boca Raton, 1994).Google Scholar
[8] Murakami, M., Kuan, T.-S. and Blech, I.A., in Treatise on Materials Science and Technology, vol. 24, edited by Tu, K.N. and Rosenberg, R. (Academic Press, Boston 1982).Google Scholar
[9] Suhir, E., J. Appl. Mech. 56, 595 (1989).CrossRefGoogle Scholar
[10] Segmuller, A. and Murakami, M., in Treatise on Materials Science and Technology, vol. 27, edited by Tu, K.N. and Rosenberg, R. (Academic Press, Boston 1988).Google Scholar
[11] International Centre for Diffraction Data (ICDD) card number 43-1022.Google Scholar
[12] International Centre for Diffraction Data (ICDD) card numbers 39-1433 and 43-0002.Google Scholar
[13] Kojima, H., Ferromagnetic Materials, Vol. 3, edited by Wohlfarth, E.P. (North-Holland Publishing Co., New York, 1982).Google Scholar

Full text views

Full text views reflects PDF downloads, PDFs sent to Google Drive, Dropbox and Kindle and HTML full text views.

Total number of HTML views: 0
Total number of PDF views: 2 *
View data table for this chart

* Views captured on Cambridge Core between September 2016 - 26th February 2021. This data will be updated every 24 hours.

1 Cited by

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.

Cracking and Delamination of Heteroepitaxial Barium Hexaferrite Films
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.

Cracking and Delamination of Heteroepitaxial Barium Hexaferrite Films
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.

Cracking and Delamination of Heteroepitaxial Barium Hexaferrite Films
Available formats
×
×

Reply to: Submit a response

Your details

Conflicting interests

Do you have any conflicting interests? *