Ferromagnetic resonance and spin-wave resonances in GaMnAsP films

Xinyu Liu; Xiang Li; Seul Ki Bac; Xucheng Zhang; Sining Dong; Sanghoon Lee; Margaret Dobrowolska; Jacek K. Furdyna

doi:10.1063/1.5006090

Ferromagnetic resonance and spin-wave resonances in GaMnAsP films

Xinyu Liu, Xiang Li, Seul Ki Bac, Xucheng Zhang, Sining Dong, Sanghoon Lee, Margaret Dobrowolska, Jacek K. Furdyna

Department of Physics

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

4 Citations (Scopus)

Abstract

A series of Ga_1-xMn_xAs_1-yP_y films grown by MBE on GaAs (100) substrates was systematically studied by ferromagnetic resonance (FMR). Magnetic anisotropy parameters were obtained by analyzing the angular dependence of the FMR data. The results clearly show that the easy axis of the films shifts from the in-plane [100] direction to the out-of-plane [001], indicating the emergence of a strong tensile-strain-induced perpendicular anisotropy when the P content exceeds y 0.07. Multiple resonances were observed in Ga_1-xMn_xAs_1-yP_y films with thicknesses over 48 nm, demonstrating the existence of exchange-dominated non-propagating spin-wave modes governed by surface anisotropy.

Original language	English
Article number	056402
Journal	AIP Advances
Volume	8
Issue number	5
DOIs	https://doi.org/10.1063/1.5006090
Publication status	Published - 2018 May 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.5006090

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title = "Ferromagnetic resonance and spin-wave resonances in GaMnAsP films",

abstract = "A series of Ga1-xMnxAs1-yPy films grown by MBE on GaAs (100) substrates was systematically studied by ferromagnetic resonance (FMR). Magnetic anisotropy parameters were obtained by analyzing the angular dependence of the FMR data. The results clearly show that the easy axis of the films shifts from the in-plane [100] direction to the out-of-plane [001], indicating the emergence of a strong tensile-strain-induced perpendicular anisotropy when the P content exceeds y 0.07. Multiple resonances were observed in Ga1-xMnxAs1-yPy films with thicknesses over 48 nm, demonstrating the existence of exchange-dominated non-propagating spin-wave modes governed by surface anisotropy.",

author = "Xinyu Liu and Xiang Li and Bac, {Seul Ki} and Xucheng Zhang and Sining Dong and Sanghoon Lee and Margaret Dobrowolska and Furdyna, {Jacek K.}",

note = "Funding Information: This work is supported by the NSF Grant DMR14-00432; by Basic Science Research Program through the NRF of Korea funded by the Ministry of Education (2015R1D1A1A01056614); by a grant from Korea University. Publisher Copyright: {\textcopyright} 2017 Author(s).",

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doi = "10.1063/1.5006090",

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T1 - Ferromagnetic resonance and spin-wave resonances in GaMnAsP films

AU - Liu, Xinyu

AU - Li, Xiang

AU - Bac, Seul Ki

AU - Zhang, Xucheng

AU - Dong, Sining

AU - Lee, Sanghoon

AU - Dobrowolska, Margaret

AU - Furdyna, Jacek K.

N1 - Funding Information: This work is supported by the NSF Grant DMR14-00432; by Basic Science Research Program through the NRF of Korea funded by the Ministry of Education (2015R1D1A1A01056614); by a grant from Korea University. Publisher Copyright: © 2017 Author(s).

PY - 2018/5/1

Y1 - 2018/5/1

N2 - A series of Ga1-xMnxAs1-yPy films grown by MBE on GaAs (100) substrates was systematically studied by ferromagnetic resonance (FMR). Magnetic anisotropy parameters were obtained by analyzing the angular dependence of the FMR data. The results clearly show that the easy axis of the films shifts from the in-plane [100] direction to the out-of-plane [001], indicating the emergence of a strong tensile-strain-induced perpendicular anisotropy when the P content exceeds y 0.07. Multiple resonances were observed in Ga1-xMnxAs1-yPy films with thicknesses over 48 nm, demonstrating the existence of exchange-dominated non-propagating spin-wave modes governed by surface anisotropy.

AB - A series of Ga1-xMnxAs1-yPy films grown by MBE on GaAs (100) substrates was systematically studied by ferromagnetic resonance (FMR). Magnetic anisotropy parameters were obtained by analyzing the angular dependence of the FMR data. The results clearly show that the easy axis of the films shifts from the in-plane [100] direction to the out-of-plane [001], indicating the emergence of a strong tensile-strain-induced perpendicular anisotropy when the P content exceeds y 0.07. Multiple resonances were observed in Ga1-xMnxAs1-yPy films with thicknesses over 48 nm, demonstrating the existence of exchange-dominated non-propagating spin-wave modes governed by surface anisotropy.

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U2 - 10.1063/1.5006090

DO - 10.1063/1.5006090

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SN - 2158-3226

VL - 8

JO - AIP Advances

JF - AIP Advances

IS - 5

M1 - 056402

ER -

Ferromagnetic resonance and spin-wave resonances in GaMnAsP films

Abstract

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