Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-03T00:04:26.908Z Has data issue: false hasContentIssue false
  • English
  • Français

Underlying causes of the magnetic behavior in surface patterned NiFe2O4 thin films

Published online by Cambridge University Press:  13 September 2016

Goran Rasic ,
Branislav Vlahovic  and
Justin Schwartz
Goran Rasic*
Affiliation:
Department of Physics, North Carolina Central University, Durham, NC 27707, USA
Branislav Vlahovic
Affiliation:
Department of Physics, North Carolina Central University, Durham, NC 27707, USA
Justin Schwartz
Affiliation:
Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27695-7907, USA
*
Address all correspondence to Goran Rasic at [email protected]
Get access

Abstract

Surface patterned NiFe2O4 thin films exhibited large reduction in coercivity as compared with the films without surface patterning. Chemical analysis of the films revealed that there was no diffusion between the film and the substrate. Additional heating was shown to improve saturation magnetization without adverse effect on coercivity. The process of imprinting was eliminated as the possible cause of the phenomena as the flat stamp did not alter the magnetic properties of the film. Finally, it was shown that the orientation of the features with respect to the magnetic field does not have a significant effect on the magnetic response.

Type
Research Letters
Information
MRS Communications , Volume 6 , Issue 4 , December 2016 , pp. 397 - 401
Check for updates
Copyright
Copyright © Materials Research Society 2016 

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. Cullity, B.D. and Graham, C.D.: Introduction to Magnetic Materials, 2nd ed. (IEEE/Wiley, Hoboken, NJ, 2009).Google Scholar
2. Spaldin, N.A.: Magnetic Materials: Fundamentals and Applications, 2nd ed. (Cambridge University Press, Cambridge, New York, 2011).Google Scholar
3. Luders, U., Barthelemy, A., Bibes, M., Bouzehouane, K., Fusil, S., Jacquet, E., Contour, J.P., Bobo, J.F., Fontcuberta, J., and Fert, A.: NiFe2O4: a versatile spinel material brings new opportunities for spintronics. Adv. Mater. 18, 1733 (2006).Google Scholar
4. Chapline, M.G. and Wang, S.X.: Spin filter based tunnel junctions. J. Appl. Phys. 100, 123909 (2006).Google Scholar
5. Gajek, M., Bibes, M., Barthelemy, A., Bouzehouane, K., Fusil, S., Varela, M., Fontcuberta, J., and Fert, A.: Spin filtering through ferromagnetic BiMnO3 tunnel barriers. Phys. Rev. B 72, 020406 (2005).Google Scholar
6. Zhao, P., Zhao, Z.L., Hunter, D., Suchoski, R., Gao, C., Mathews, S., Wuttig, M., and Takeuchi, I.: Fabrication and characterization of all-thin-film magnetoelectric sensors. Appl. Phys. Lett. 94, 243507 (2009).Google Scholar
7. Goodenough, J.B.: Summary of losses in magnetic materials. IEEE Trans. Magnetics 38, 3398 (2002).Google Scholar
8. Ross, C.A., Haratani, S., Castano, F.J., Hao, Y., Hwang, M., Shima, M., Cheng, J.Y., Vogeli, B., Farhoud, M., Walsh, M., and Smith, H.I.: Magnetic behavior of lithographically patterned particle arrays (invited). J. Appl. Phys. 91, 6848 (2002).CrossRefGoogle Scholar
9. Li, Z., Wang, J., Lin, Y.H., and Nan, C.W.: A magnetoelectric memory cell with coercivity state as writing data bit. Appl. Phys. Lett. 96, 162505 (2010).Google Scholar
10. Shi, Z., Wang, C.P., Liu, X.J., and Nan, C.W.: A four-state memory cell based on magnetoelectric composite. Chinese Sci. Bull. 53, 2135 (2008).Google Scholar
11. Bibes, M. and Barthelemy, A.: Multiferroics: towards a magnetoelectric memory. Nat. Mater. 7, 425 (2008).CrossRefGoogle ScholarPubMed
12. Priya, S., Islam, R., Dong, S.X., and Viehland, D.: Recent advancements in magnetoelectric particulate and laminate composites. J. Electroceram. 19, 149 (2007).Google Scholar
13. Fiebig, M.: Revival of the magnetoelectric effect. J. Phys. D-Appl. Phys. 38, R123 (2005).Google Scholar
14. Nan, C.W., Bichurin, M.I., Dong, S.X., Viehland, D., and Srinivasan, G.: Multiferroic magnetoelectric composites: historical perspective, status, and future directions. J. Appl. Phys. 103, 031101 (2008).Google Scholar
15. Rasic, G. and Schwartz, J.: Nanoimprint lithographic surface patterning of sol–gel fabricated nickel ferrite (NiFe2O4). MRS Commun. 3, 207 (2013).Google Scholar
16. Rasic, G. and Schwartz, J.: Coercivity reduction in Nickel Ferrite (NiFe2O4) thin films through surface patterning. IEEE Magnetics Lett. 5, 1 (2014).Google Scholar
17. Rasic, G. and Schwartz, J.: On the origin of coercivity reduction in surface patterned magnetic thin films. Phys. Status Solidi (a) 212, 449 (2015).Google Scholar
18. Seifikar, S., Calandro, B., Deeb, E., Sachet, E., Yang, J.J., Maria, J.P., Bassiri-Gharb, N., and Schwartz, J.: Structural and magnetic properties of biaxially textured NiFe2O4 thin films grown on c-plane sapphire. J. Appl. Phys. 112, 3050 (2012).Google Scholar
19. Efimenko, K., Wallace, W.E., and Genzer, J.: Surface modification of Sylgard-184 Poly(dimethyl siloxane) networks by ultraviolet and ultraviolet/ozone treatment. J. Colloid Interface Sci. 254, 306 (2002).Google Scholar
20. Sattler, K.D.: Handbook of Nanophysics: Nanotubes and Nanowires (Taylor & Francis, Boca Raton, FL, 2011).Google Scholar
21. Goolaup, S., Singh, N., and Adeyeye, A.O.: Coercivity variation in Ni80Fe20 ferromagnetic nanowires. IEEE Trans. Nanotechnol. 4, 523 (2005).Google Scholar
22. Van Thiem, L., Tu, L., and Phan, M.-H.: Magnetization reversal and magnetic anisotropy in ordered CoNiP nanowire arrays: effects of wire diameter. Sensors 15, 5687 (2015).Google Scholar