Skip to main content Accessibility help
×
Home
Hostname: page-component-cf9d5c678-dkwk2 Total loading time: 0.185 Render date: 2021-08-04T10:49:06.248Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

Structural and Magnetic Properties of Granular Co-ZrO2 Films

Published online by Cambridge University Press:  01 February 2011

Z Konstantinović
Affiliation:
Departament de Fïsica Aplicada i òptica, Universitat de Barcelona, Avinguda Diagonal 647, 08028-Barcelona, Spain
M García del Muro
Affiliation:
Departament de Fïsica Aplicada i òptica, Universitat de Barcelona, Avinguda Diagonal 647, 08028-Barcelona, Spain
B J Hattink
Affiliation:
Departament de Fïsica Aplicada i òptica, Universitat de Barcelona, Avinguda Diagonal 647, 08028-Barcelona, Spain
M Varela
Affiliation:
Departament de Fïsica Aplicada i òptica, Universitat de Barcelona, Avinguda Diagonal 647, 08028-Barcelona, Spain
X Batlle
Affiliation:
Departament de Fïsica Aplicada i òptica, Universitat de Barcelona, Avinguda Diagonal 647, 08028-Barcelona, Spain
A Labarta
Affiliation:
Departament de Fïsica Aplicada i òptica, Universitat de Barcelona, Avinguda Diagonal 647, 08028-Barcelona, Spain
Get access

Abstract

We present here the growth of Co-ZrO2 granular films by pulsed laser deposition (PLD). Co-ZrO2 prepared with PLD is an ideal system for investigating the properties of magnetic nanoparticle since the Co-ZrO2 interfaces are of high quality with no evidence of intermixing. The average composition of the samples is determined by x-ray photoemission spectroscopy and microprobe exsperiments. High resolution scanning electron microscopy shows existence of a regular distribution of Co nanoparticles embedded in the amorphous ZrO2 matrix. Ferromagnetic correlations among the Co nanoparticules are evident in the field-cooled state. The mean particle size and width of the distribution are determined by fitting the low-field magnetic susceptibility and isothermal magnetization in the paramagnetic regime to a distribution of Langevin functions. Magnetoresistance confirms its origin from the particle magnetization and also validates information about the particle distribution.

Type
Research Article
Copyright
Copyright © Materials Research Society 2005

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. Abeles, B., Sheng, P., Coutts, M.D. and Arie, Y., Adv. Phys. 24, 407 (1975).CrossRefGoogle Scholar
2. Batlle, X. and Labarta, A., J. Phys. D: Appl. Phys. 35, 15 (2002).CrossRefGoogle Scholar
3. Chien, C.L., ‘Science and Technology of Nanostructured Magnetic Materials’, ed Hadjipanayis, G.C., and Prinz, G.A. (New York: Plenum Press), p. 477 (1991).CrossRefGoogle Scholar
4. Chien, C.L., J. Appl. Phys., 6 5267 (1991).CrossRefGoogle Scholar
5. Abeles, B., ‘Applied Solid State Science: Advances in Materials and Device Research’, ed Wolfe, R. (New York: Academic) (1976).Google Scholar
6. Chien, C.L., Xiao, J.Q., and Jiang, J.S., J. Appl. 73 5309 (1993).CrossRefGoogle Scholar
7. Respaud, M.., et al. Phys. Rev. B 57, 2925 (1998).CrossRefGoogle Scholar
8. Ohnuma, M., Hono, K., Abe, E., Onodera, H., Mitani, S., and Fujimori, H., J. Appl. Phys. 82, 5646 (1997).CrossRefGoogle Scholar
9. Sankar, S., Berkowitz, A. E., and Smith, D. J., Phys. Rev. B 62, 14273 (2000); S. Sankar, D. Dender, J. A. Borchers, D. J. Smith, R. W. Erwin, S. R. Kline, and A. E. Berkowitz, J. Magn. Magn. Mater. 221, 1 (2000).CrossRefGoogle Scholar
10. , Jamet, Depuis, V., Mélinon, P., Guiraud, G., Pérez, A., Wernsdorfer, W., Traverse, A. and Baguenard, B., Phys. Rev. B 62, 493 (2000).CrossRefGoogle Scholar
11. Graf, H., Vancea, J., and Hoffmann, H., Appl. Phys. Lett. 80, 1264 (2002).CrossRefGoogle Scholar
12. Hattink, B. J., Labarta, A., Muro, M. Garcia del, Batlle, X., Sánchez, F., Varela, M., Phys. Rev. B 67, 033402 (2003).CrossRefGoogle Scholar
13. Hattink, B. J., Muro, M. García del, Konstantinović, Z., Puntes, V.F., Batlle, X., Labarta, A., Varela, M., Int. J. Nanotechnology, in press.Google Scholar
14. Sheng, P., Abeles, B., and Arie, Y., Phys. Rev. Lett. 31, 44 (1973).CrossRefGoogle Scholar
15. Balcells, Ll., Fontcuberta, J., Martínez, B. and Obradors, X., Phys. Rev. B 58, R14697 (1998); Ll. Balcells, B. Martínez, F. Sandiumenge, and J. Fontcuberta, J. Phys.: Condens. Matter 12, 3013 (2000).CrossRefGoogle Scholar
16. Inoue, J. and Maekawa, S., Phys. Rev. B 53, R11927 (1996).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.

Structural and Magnetic Properties of Granular Co-ZrO2 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.

Structural and Magnetic Properties of Granular Co-ZrO2 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.

Structural and Magnetic Properties of Granular Co-ZrO2 Films
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? *