Observation of nearly intrinsic ferromagnetic resonance linewidth in BaFe 12O 19 films deposited by pulsed laser deposition

L. V. Saraf; S. E. Lofland; Arthur Von Cresce; A. P. Monga; S. M. Bhagat; R. Ramesh

doi:10.1109/20.951177

Observation of nearly intrinsic ferromagnetic resonance linewidth in BaFe ₁₂O ₁₉ films deposited by pulsed laser deposition

L. V. Saraf, S. E. Lofland, Arthur Von Cresce, A. P. Monga, S. M. Bhagat, R. Ramesh

Physics

Research output: Contribution to journal › Conference article

3 Scopus citations

Abstract

We report magnetic resonance results on (0.3-8 μm) films of c-axis oriented barium ferrite grown by pulsed laser deposition on sapphire substrates. By optimizing the growth and annealing parameters, we have observed numerous (up to 25) spin wave resonance modes as well as nearly intrinsic ferromagnetic resonance linewidth of 23 Oe at 58 GHz, when the applied field is parallel to the c axis. On rotation of the field away from the film normal, the linewidth increases rapidly. This is taken in to account by using a small (0.3°) spread in the film orientation combined with the conventional formula for shape anisotropy. Atomic force microscopy surface roughness measurements support these considerations.

Original language	English (US)
Pages (from-to)	2377-2379
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	37
Issue number	4 I
DOIs	https://doi.org/10.1109/20.951177
State	Published - Jul 1 2001
Event	8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States Duration: Jan 7 2001 → Jan 11 2001

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/20.951177

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Saraf, L. V., Lofland, S. E., Von Cresce, A., Monga, A. P., Bhagat, S. M., & Ramesh, R. (2001). Observation of nearly intrinsic ferromagnetic resonance linewidth in BaFe ₁₂O ₁₉ films deposited by pulsed laser deposition. IEEE Transactions on Magnetics, 37(4 I), 2377-2379. https://doi.org/10.1109/20.951177

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title = "Observation of nearly intrinsic ferromagnetic resonance linewidth in BaFe 12O 19 films deposited by pulsed laser deposition",

abstract = "We report magnetic resonance results on (0.3-8 μm) films of c-axis oriented barium ferrite grown by pulsed laser deposition on sapphire substrates. By optimizing the growth and annealing parameters, we have observed numerous (up to 25) spin wave resonance modes as well as nearly intrinsic ferromagnetic resonance linewidth of 23 Oe at 58 GHz, when the applied field is parallel to the c axis. On rotation of the field away from the film normal, the linewidth increases rapidly. This is taken in to account by using a small (0.3°) spread in the film orientation combined with the conventional formula for shape anisotropy. Atomic force microscopy surface roughness measurements support these considerations.",

author = "Saraf, {L. V.} and Lofland, {S. E.} and {Von Cresce}, Arthur and Monga, {A. P.} and Bhagat, {S. M.} and R. Ramesh",

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T1 - Observation of nearly intrinsic ferromagnetic resonance linewidth in BaFe 12O 19 films deposited by pulsed laser deposition

AU - Saraf, L. V.

AU - Lofland, S. E.

AU - Von Cresce, Arthur

AU - Monga, A. P.

AU - Bhagat, S. M.

AU - Ramesh, R.

PY - 2001/7/1

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N2 - We report magnetic resonance results on (0.3-8 μm) films of c-axis oriented barium ferrite grown by pulsed laser deposition on sapphire substrates. By optimizing the growth and annealing parameters, we have observed numerous (up to 25) spin wave resonance modes as well as nearly intrinsic ferromagnetic resonance linewidth of 23 Oe at 58 GHz, when the applied field is parallel to the c axis. On rotation of the field away from the film normal, the linewidth increases rapidly. This is taken in to account by using a small (0.3°) spread in the film orientation combined with the conventional formula for shape anisotropy. Atomic force microscopy surface roughness measurements support these considerations.

AB - We report magnetic resonance results on (0.3-8 μm) films of c-axis oriented barium ferrite grown by pulsed laser deposition on sapphire substrates. By optimizing the growth and annealing parameters, we have observed numerous (up to 25) spin wave resonance modes as well as nearly intrinsic ferromagnetic resonance linewidth of 23 Oe at 58 GHz, when the applied field is parallel to the c axis. On rotation of the field away from the film normal, the linewidth increases rapidly. This is taken in to account by using a small (0.3°) spread in the film orientation combined with the conventional formula for shape anisotropy. Atomic force microscopy surface roughness measurements support these considerations.

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