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Magnetic properties of NiCuZn ferrite thin films prepared by the sol-gel method

Journal of Wuhan University of Technology-Mater. Sci. Ed. volume 22, pages 506–509 (2007)Cite this article

Abstract

Ni0.4Cu0.2Zn0.4Fe2O4 thin films were fabricated on Si substrates by using the sol-gel method and rapid thermal annealing (RTA), and their magnetic properties and crystalline structures were investigated. The samples calcined at and above 600 °C have a single-phase spinel structure and the average grain size of the sample calcined at 600°C is about 20 nm. The initial permeability μ i , saturation magnetization M s and coercivity H c of the samples increase with the increasing calcination temperature. The sample calcined at 600°C exhibits an excellent soft magnetic performance, which has μ i =33.97 (10 MHz), H c=15.62 Oe and M s=228.877 emu/cm3. Low-temperature annealing can enhance the magnetic properties of the samples. The work shows that using the sol-gel method in conjunction with RTA is a promising way to fabricate integrated thin-film devices.

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Authors and Affiliations

  1. Institute of Microelectronics, Tsinghua University, Beijing, 100084, China

    Liu Feng  (刘锋), Ren Tianling, Yang Chen & Liu Litian

  2. Institute of Microelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China

    Yu Jun

Authors
  1. Liu Feng  (刘锋)
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  2. Ren Tianling
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  3. Yang Chen
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  4. Liu Litian
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  5. Yu Jun
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Corresponding author

Correspondence to Liu Feng  (刘锋).

Additional information

Funded by the National Natural Science Foundation of China (No. 90607021).

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Liu, F., Ren, T., Yang, C. et al. Magnetic properties of NiCuZn ferrite thin films prepared by the sol-gel method. J. Wuhan Univ. Technol. 22, 506–509 (2007). https://doi.org/10.1007/s11595-006-3506-3

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  • DOI: https://doi.org/10.1007/s11595-006-3506-3

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