Spin-spray deposited NiZn-Ferrite films exhibiting μ r′>50 at GHz range

Ogheneyunume Obi; Ming Liu; Jing Lou; Stephen Stoute; Xing Xing; Nian X. Sun; Juliusz Warzywoda; Albert Sacco; Daniel E. Oates; Gerald F. Dionne

doi:10.1063/1.3562879

Spin-spray deposited NiZn-Ferrite films exhibiting μ _r′>50 at GHz range

Ogheneyunume Obi, Ming Liu, Jing Lou, Stephen Stoute, Xing Xing, Nian X. Sun, Juliusz Warzywoda, Albert Sacco, Daniel E. Oates, Gerald F. Dionne

Engineering

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

Ni_0.27Zn_xFe_2.73-xO₄ (with x 0.03-0.1) thin films with high real permeability _r′ in the GHz range were fabricated by the spin spray process onto glass substrates in the presence of an external magnetic field of 360 Oe. These films exhibit high permeabilities that exceeded the Snoek limit for bulk NiZn-ferrite films and those previously reported for spin spray deposited ferrites. The NiZn-ferrite film with x 0.06 is low in magnetic losses, having tan_m ( _r″/_r′) ∼ 0.027 from 1 to 1.5 GHz, and a high ferromagnetic resonance (FMR) frequency of 2.7 GHz, while the x 0.1 film exhibited a high _r′ of ∼50 and _r″ 50 at 1 GHz. These properties are ideal for microwave applications such as antennas, inductors and electromagnetic interference (EMI) suppression in the GHz range.

Original language	English
Article number	07E527
Journal	Journal of Applied Physics
Volume	109
Issue number	7
DOIs	https://doi.org/10.1063/1.3562879
State	Published - Apr 1 2011

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@article{3d06c669edb946399ed1214e17a5d1e8,

title = "Spin-spray deposited NiZn-Ferrite films exhibiting μ r′>50 at GHz range",

abstract = "Ni0.27ZnxFe2.73-xO4 (with x 0.03-0.1) thin films with high real permeability r′ in the GHz range were fabricated by the spin spray process onto glass substrates in the presence of an external magnetic field of 360 Oe. These films exhibit high permeabilities that exceeded the Snoek limit for bulk NiZn-ferrite films and those previously reported for spin spray deposited ferrites. The NiZn-ferrite film with x 0.06 is low in magnetic losses, having tanm ( r″/r′) ∼ 0.027 from 1 to 1.5 GHz, and a high ferromagnetic resonance (FMR) frequency of 2.7 GHz, while the x 0.1 film exhibited a high r′ of ∼50 and r″ 50 at 1 GHz. These properties are ideal for microwave applications such as antennas, inductors and electromagnetic interference (EMI) suppression in the GHz range.",

author = "Ogheneyunume Obi and Ming Liu and Jing Lou and Stephen Stoute and Xing Xing and Sun, {Nian X.} and Juliusz Warzywoda and Albert Sacco and Oates, {Daniel E.} and Dionne, {Gerald F.}",

note = "Funding Information: This work is sponsored by NSF under awards ECCS-0746810 and ONR under awards N000140710761 and N000140810526. The authors would like to thank Professor Yan Zhuang, Dr. Yun Xing, Mariam Ismal, Dr. Khouloud Sweimeh and Jacques-Antoine Jean for their contributions toward the completion of this research.",

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doi = "10.1063/1.3562879",

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T1 - Spin-spray deposited NiZn-Ferrite films exhibiting μ r′>50 at GHz range

AU - Obi, Ogheneyunume

AU - Liu, Ming

AU - Lou, Jing

AU - Stoute, Stephen

AU - Xing, Xing

AU - Sun, Nian X.

AU - Warzywoda, Juliusz

AU - Sacco, Albert

AU - Oates, Daniel E.

AU - Dionne, Gerald F.

N1 - Funding Information: This work is sponsored by NSF under awards ECCS-0746810 and ONR under awards N000140710761 and N000140810526. The authors would like to thank Professor Yan Zhuang, Dr. Yun Xing, Mariam Ismal, Dr. Khouloud Sweimeh and Jacques-Antoine Jean for their contributions toward the completion of this research.

PY - 2011/4/1

Y1 - 2011/4/1

N2 - Ni0.27ZnxFe2.73-xO4 (with x 0.03-0.1) thin films with high real permeability r′ in the GHz range were fabricated by the spin spray process onto glass substrates in the presence of an external magnetic field of 360 Oe. These films exhibit high permeabilities that exceeded the Snoek limit for bulk NiZn-ferrite films and those previously reported for spin spray deposited ferrites. The NiZn-ferrite film with x 0.06 is low in magnetic losses, having tanm ( r″/r′) ∼ 0.027 from 1 to 1.5 GHz, and a high ferromagnetic resonance (FMR) frequency of 2.7 GHz, while the x 0.1 film exhibited a high r′ of ∼50 and r″ 50 at 1 GHz. These properties are ideal for microwave applications such as antennas, inductors and electromagnetic interference (EMI) suppression in the GHz range.

AB - Ni0.27ZnxFe2.73-xO4 (with x 0.03-0.1) thin films with high real permeability r′ in the GHz range were fabricated by the spin spray process onto glass substrates in the presence of an external magnetic field of 360 Oe. These films exhibit high permeabilities that exceeded the Snoek limit for bulk NiZn-ferrite films and those previously reported for spin spray deposited ferrites. The NiZn-ferrite film with x 0.06 is low in magnetic losses, having tanm ( r″/r′) ∼ 0.027 from 1 to 1.5 GHz, and a high ferromagnetic resonance (FMR) frequency of 2.7 GHz, while the x 0.1 film exhibited a high r′ of ∼50 and r″ 50 at 1 GHz. These properties are ideal for microwave applications such as antennas, inductors and electromagnetic interference (EMI) suppression in the GHz range.

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JO - Journal of Applied Physics

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Spin-spray deposited NiZn-Ferrite films exhibiting μ _r′>50 at GHz range

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