Exceptionally high magnetization of stoichiometric Y3Fe5O12 epitaxial films grown on Gd3Ga5O12

James C. Gallagher; Angela S. Yang; Jack T. Brangham; Bryan D. Esser; Shane P. White; Michael R. Page; Keng-Yuan Meng; Sisheng Yu; Rohan Adur; William Ruane; Sarah R. Dunsiger; David W. McComb; Fengyuan Yang; P. Chris Hammel

doi:10.1063/1.4961371

Exceptionally high magnetization of stoichiometric Y₃Fe₅O₁₂ epitaxial films grown on Gd₃Ga₅O₁₂

James C. Gallagher, Angela S. Yang, Jack T. Brangham, Bryan D. Esser, Shane P. White, Michael R. Page, Keng-Yuan Meng, Sisheng Yu, Rohan Adur, William Ruane, Sarah R. Dunsiger, David W. McComb, Fengyuan Yang, P. Chris Hammel

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

41 Citations (Scopus)

Abstract

The saturation magnetization of Y₃Fe₅O₁₂ (YIG) epitaxial films 4 to 250 nm in thickness has been determined by complementary measurements including the angular and frequency dependencies of the ferromagnetic resonance fields as well as magnetometry measurements. The YIG films exhibit state-of-the-art crystalline quality, proper stoichiometry, and pure Fe³⁺ valence state. The values of YIG magnetization obtained from all the techniques significantly exceed previously reported values for single crystal YIG and the theoretical maximum. This enhancement of magnetization, not attributable to off-stoichiometry or other defects in YIG, opens opportunities for tuning magnetic properties in epitaxial films of magnetic insulators.

Original language	English
Article number	072401
Number of pages	5
Journal	Applied Physics Letters
Volume	109
Issue number	7
DOIs	https://doi.org/10.1063/1.4961371
Publication status	Published - 15 Aug 2016
Externally published	Yes

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10.1063/1.4961371

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Gallagher, J. C., Yang, A. S., Brangham, J. T., Esser, B. D., White, S. P., Page, M. R., Meng, K.-Y., Yu, S., Adur, R., Ruane, W., Dunsiger, S. R., McComb, D. W., Yang, F., & Hammel, P. C. (2016). Exceptionally high magnetization of stoichiometric Y₃Fe₅O₁₂ epitaxial films grown on Gd₃Ga₅O₁₂. Applied Physics Letters, 109(7), Article 072401. https://doi.org/10.1063/1.4961371

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title = "Exceptionally high magnetization of stoichiometric Y3Fe5O12 epitaxial films grown on Gd3Ga5O12",

abstract = "The saturation magnetization of Y3Fe5O12 (YIG) epitaxial films 4 to 250 nm in thickness has been determined by complementary measurements including the angular and frequency dependencies of the ferromagnetic resonance fields as well as magnetometry measurements. The YIG films exhibit state-of-the-art crystalline quality, proper stoichiometry, and pure Fe3+ valence state. The values of YIG magnetization obtained from all the techniques significantly exceed previously reported values for single crystal YIG and the theoretical maximum. This enhancement of magnetization, not attributable to off-stoichiometry or other defects in YIG, opens opportunities for tuning magnetic properties in epitaxial films of magnetic insulators.",

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doi = "10.1063/1.4961371",

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AU - Gallagher, James C.

AU - Yang, Angela S.

AU - Brangham, Jack T.

AU - Esser, Bryan D.

AU - White, Shane P.

AU - Page, Michael R.

AU - Meng, Keng-Yuan

AU - Yu, Sisheng

AU - Adur, Rohan

AU - Ruane, William

AU - Dunsiger, Sarah R.

AU - McComb, David W.

AU - Yang, Fengyuan

AU - Hammel, P. Chris

PY - 2016/8/15

Y1 - 2016/8/15

N2 - The saturation magnetization of Y3Fe5O12 (YIG) epitaxial films 4 to 250 nm in thickness has been determined by complementary measurements including the angular and frequency dependencies of the ferromagnetic resonance fields as well as magnetometry measurements. The YIG films exhibit state-of-the-art crystalline quality, proper stoichiometry, and pure Fe3+ valence state. The values of YIG magnetization obtained from all the techniques significantly exceed previously reported values for single crystal YIG and the theoretical maximum. This enhancement of magnetization, not attributable to off-stoichiometry or other defects in YIG, opens opportunities for tuning magnetic properties in epitaxial films of magnetic insulators.

AB - The saturation magnetization of Y3Fe5O12 (YIG) epitaxial films 4 to 250 nm in thickness has been determined by complementary measurements including the angular and frequency dependencies of the ferromagnetic resonance fields as well as magnetometry measurements. The YIG films exhibit state-of-the-art crystalline quality, proper stoichiometry, and pure Fe3+ valence state. The values of YIG magnetization obtained from all the techniques significantly exceed previously reported values for single crystal YIG and the theoretical maximum. This enhancement of magnetization, not attributable to off-stoichiometry or other defects in YIG, opens opportunities for tuning magnetic properties in epitaxial films of magnetic insulators.

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Exceptionally high magnetization of stoichiometric Y3Fe5O12 epitaxial films grown on Gd3Ga5O12

Abstract

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Exceptionally high magnetization of stoichiometric Y₃Fe₅O₁₂ epitaxial films grown on Gd₃Ga₅O₁₂