Second harmonic generation and ferromagnetic resonance of BaTiO3-BiFeO3 films and nanorod arrays

Nicholas W.G. Smith; Rathsara R.H.H. Mudiyanselage; Shuang Wu; Satoru Emori; Brenden A. Magill; Shashank Priya; Giti A. Khodaparast

doi:10.1088/2515-7639/adeaee

Second harmonic generation and ferromagnetic resonance of BaTiO₃-BiFeO₃ films and nanorod arrays

Nicholas W.G. Smith
, Rathsara R.H.H. Mudiyanselage
, Shuang Wu
, Satoru Emori
, Brenden A. Magill
, Shashank Priya
, Giti A. Khodaparast

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

Abstract

The solid solution of BaTiO₃-BiFeO₃ (BTO-BFO) exhibits enhanced magneto-electric coupling compared to the widely explored BiFeO₃. In this study, we examined BTO-BFO nanorod arrays (and films) ranging from 200 to 600 nm in height (and thickness) by employing second harmonic emission (SHE) and ferromagnetic resonance (FMR) measurements. We demonstrated a large enhancement in SHE in nanorod arrays compared to the films, which can be attributed to the high surface-to-volume ratio in the nanorod arrays. Our FMR measurements showed low effective damping parameters of (4-8) × 10⁻³ in both nanorods and film structures. These observations are promising for future nonlinear optoelectronics and spintronics applications.

Original language	English (US)
Article number	035009
Journal	JPhys Materials
Volume	8
Issue number	3
DOIs	https://doi.org/10.1088/2515-7639/adeaee
State	Published - Jul 1 2025
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2025 The Author(s). Published by IOP Publishing Ltd.

Keywords

ferromagnetic resonance
magneto-electric
multiferroics
nonlinear optics
second harmonic generation
spintronics

Publisher link

10.1088/2515-7639/adeaee

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Cite this

@article{b03d0974ed524e5e9360690c8839fdf1,

title = "Second harmonic generation and ferromagnetic resonance of BaTiO3-BiFeO3 films and nanorod arrays",

abstract = "The solid solution of BaTiO3-BiFeO3 (BTO-BFO) exhibits enhanced magneto-electric coupling compared to the widely explored BiFeO3. In this study, we examined BTO-BFO nanorod arrays (and films) ranging from 200 to 600 nm in height (and thickness) by employing second harmonic emission (SHE) and ferromagnetic resonance (FMR) measurements. We demonstrated a large enhancement in SHE in nanorod arrays compared to the films, which can be attributed to the high surface-to-volume ratio in the nanorod arrays. Our FMR measurements showed low effective damping parameters of (4-8) × 10−3 in both nanorods and film structures. These observations are promising for future nonlinear optoelectronics and spintronics applications.",

keywords = "ferromagnetic resonance, magneto-electric, multiferroics, nonlinear optics, second harmonic generation, spintronics",

author = "Smith, \{Nicholas W.G.\} and Mudiyanselage, \{Rathsara R.H.H.\} and Shuang Wu and Satoru Emori and Magill, \{Brenden A.\} and Shashank Priya and Khodaparast, \{Giti A.\}",

note = "Publisher Copyright: {\textcopyright} 2025 The Author(s). Published by IOP Publishing Ltd.",

year = "2025",

month = jul,

day = "1",

doi = "10.1088/2515-7639/adeaee",

language = "English (US)",

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TY - JOUR

T1 - Second harmonic generation and ferromagnetic resonance of BaTiO3-BiFeO3 films and nanorod arrays

AU - Smith, Nicholas W.G.

AU - Mudiyanselage, Rathsara R.H.H.

AU - Wu, Shuang

AU - Emori, Satoru

AU - Magill, Brenden A.

AU - Priya, Shashank

AU - Khodaparast, Giti A.

PY - 2025/7/1

Y1 - 2025/7/1

N2 - The solid solution of BaTiO3-BiFeO3 (BTO-BFO) exhibits enhanced magneto-electric coupling compared to the widely explored BiFeO3. In this study, we examined BTO-BFO nanorod arrays (and films) ranging from 200 to 600 nm in height (and thickness) by employing second harmonic emission (SHE) and ferromagnetic resonance (FMR) measurements. We demonstrated a large enhancement in SHE in nanorod arrays compared to the films, which can be attributed to the high surface-to-volume ratio in the nanorod arrays. Our FMR measurements showed low effective damping parameters of (4-8) × 10−3 in both nanorods and film structures. These observations are promising for future nonlinear optoelectronics and spintronics applications.

AB - The solid solution of BaTiO3-BiFeO3 (BTO-BFO) exhibits enhanced magneto-electric coupling compared to the widely explored BiFeO3. In this study, we examined BTO-BFO nanorod arrays (and films) ranging from 200 to 600 nm in height (and thickness) by employing second harmonic emission (SHE) and ferromagnetic resonance (FMR) measurements. We demonstrated a large enhancement in SHE in nanorod arrays compared to the films, which can be attributed to the high surface-to-volume ratio in the nanorod arrays. Our FMR measurements showed low effective damping parameters of (4-8) × 10−3 in both nanorods and film structures. These observations are promising for future nonlinear optoelectronics and spintronics applications.

KW - ferromagnetic resonance

KW - magneto-electric

KW - multiferroics

KW - nonlinear optics

KW - second harmonic generation

KW - spintronics

UR - https://www.scopus.com/pages/publications/105011530694

UR - https://www.scopus.com/pages/publications/105011530694#tab=citedBy

U2 - 10.1088/2515-7639/adeaee

DO - 10.1088/2515-7639/adeaee

M3 - Article

AN - SCOPUS:105011530694

SN - 2515-7639

VL - 8

JO - JPhys Materials

JF - JPhys Materials

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