Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-24T15:41:43.439Z Has data issue: false hasContentIssue false

Magneto-Optical Kerr Effect in Multiferroic Nanostructures

Published online by Cambridge University Press:  26 February 2011

Matthew T. Corbo
Affiliation:
[email protected], University of California, Berkeley, Materials Science & Engineering Dept., 190 Hearst Memorial Mining Bldg., Berkeley, CA, 94720, United States, 925-324-7330
Florian Straub
Affiliation:
[email protected], University of California, Berkeley, Materials Science & Engineering, Berkeley, CA, 94720, United States
Haimei Zheng
Affiliation:
[email protected], University of California, Berkeley, Materials Science & Engineering, Berkeley, CA, 94720, United States
Maria de la Paz Cruz
Affiliation:
[email protected], University of California, Berkeley, Materials Science & Engineering, Berkeley, CA, 94720, United States
Yuri Suzuki
Affiliation:
[email protected], University of California, Berkeley, Materials Science & Engineering, Berkeley, CA, 94720, United States
Get access

Abstract

We report the study of the magneto-optical properties of composite multiferroic thin films composed of CoFe2O4 nanopillars embedded in a BiFeO3 matrix. The magneto-optical Kerr rotation and Kerr ellipticity in these films have been measured and are in good agreement with magnetization measurements. The Kerr signal has been studied as a function of film composition and nanopillar diameter confirming that the magneto-optical signal is due solely to the CoFe2O4 nanopillars.

Type
Research Article
Copyright
Copyright © Materials Research Society 2007

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

REFERENCES

1. Schmid, H., “Multi-ferroic magnetoelectrics,” Ferroelectrics, 162 317, 1994.Google Scholar
2. Smolenskiǐ, G.A. and Chupis, I.E., “Ferroelectromagnets,” Sov. Phys. Usp., 25(7) 475, 1982.Google Scholar
3. Astrov, D.N., “Magnetoelectric effect in chromium oxide,” Sov. Phys. JETP, 13 729, 1961.Google Scholar
4. Nakamura, H. and Kohn, K., “Magnetoelectric effect of rare earth manganese oxide RMn2O5,” Ferroelectrics 204 107, 1997.Google Scholar
5. Hill, N., “First principles study of multiferroic magnetoelectric manganites,” Fundamentals Physics of Ferroelectrics 2000: Aspen Center for Physics Workshop, edited by Cohen, R.E., 2000.Google Scholar
6. Wang, J., Neaton, J.B., Zheng, H., Nagarajan, V., Ogael, S.B., Liu, B., Viehland, D., Vaithyanathan, V., Schlom, D.G., Waghmare, U.V., Spaldin, N.A., Rabe, K.M., Wuttig, M. and Ramesh, R., “Epitaxial BiFeO3 multiferroic thin film heterostructures,” Science 299 1719, 2003.Google Scholar
7. Zheng, H., Wang, J., Lofland, S. E., Ma, Z., Mohaddes-Ardabili, L., Zhao, T., Salamanca-Riba, L., Shinde, S. R., Ogale, S. B., Bai, F., Viehland, D., Jia, Y., Schlom, D. G., Wuttig, M., Roytburd, A., and Ramesh, R., “Multiferroic BaTiO3-CoFe2O4 nanostructures,” Science, 303 661, 2004.Google Scholar
8. Zavaliche, F., Zheng, H., Mohaddes-Ardabili, L., Yang, S. Y., Zhan, Q., Shafer, P., Reilly, E., Chopdekar, R., Jia, Y., Wright, P., Schlom, D. G., Suzuki, Y., and Ramesh, R.. “Electric field-induced magnetization switching in epitaxial columnar nanostructures”. Nano Letters, 5(9) 1793, 2005.Google Scholar
9. Fiebig, M., Fröhlich, D., Krichevtsov, B.B. and Pisarev, R.V., "Second Harmonic Generation and Magnetic-Dipole-Electric-Dipole Interference in Antiferromagnetic Cr2O3," Phys. Rev. Lett., 73(15) 2127, (1994).Google Scholar
10. Lottermoser, T., Lonkai, T., Amann, U., Hohlwein, D., Ihringer, J., and Fiebig, M., “Magnetic phase control by an electric field,” Nature, 430 541, 2004.Google Scholar
11. Zheng, H., Straub, F., Zhan, Q., Yang, P.L., Hsieh, W.K., Zavaliche, F., Chu, Y.H., Dahmen, U., and Ramesh, R., “Self-assembled growth of BiFeO3-CoFe2O4 nanostructures,” In Preparation, 2006.Google Scholar
12. Smit, J. and Wijn, H.P.J., “Ferrites: Physical Properties of Ferrimagnetic Oxides in Relation to their Technical Applications,” Wiley, New York, 1959.Google Scholar
13. Baumberg, J.J., Crooker, S.A., Awschalom, D.D., Samarth, N., Luo, H., and Furdyna, J.K., “Ultrafast Faraday spectroscopy in magnetic semiconductor quantum structures,” Phys. Rev. B, 50(11) 7689, 1994.Google Scholar
14. Hu, G., Choi, J.H., Eom, C.B., Harris, V.G., and Suzuki, Y., “Structural tuning of the magnetic behavior in spinel-structure ferrite thin films,” Phys. Rev. B, 62(2) R779, 2000.Google Scholar
15. Ederer, C. and Spaldin, N.A., “Weak ferromagnetism and magnetoelectric coupling in bismuth ferrite,” Phys. Rev. B, 71(6) 060401, 2005.Google Scholar