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Composition-dependent spin exchange interaction for multiferroicity in perovskite Pb(Fe1/2Nb1/2)O3

Park, Ji Hun ; Cho, Jae Hyeon ; Marlton, Frederick P. ; Jang, Haeseong ; Lee, Ju Hyeon ; Jang, Jongmoon ; Hwang, Geon Tae ; Pramanick, Abhijit ; Jørgensen, Mads Ry Vogel LU orcid and Kim, Min Gyu , et al. (2024) In Journal of Applied Physics 135(20).
Abstract

The composition-dependent spin exchange interaction in a perovskite-structured Pb(Fe0.5−xNix)Nb1/2O3 system has been studied to understand its multiferroicity at room-temperature. Special emphasis was paid to the magnetic behavior in terms of magnetic moment, interatomic distance, and atomic ordering because they play a key role in the modulation of magnetic multiferroic behavior. We observed that 10 mol. % Ni incorporation led to multiferroic behavior with considerable ferrimagnetic properties (saturation magnetization of 0.6 emu/g and a coercive field of 20 Oe) coupled with the inherent properties of displacive ferroelectricity (spontaneous polarization of 20 μC/cm2). A subsequent... (More)

The composition-dependent spin exchange interaction in a perovskite-structured Pb(Fe0.5−xNix)Nb1/2O3 system has been studied to understand its multiferroicity at room-temperature. Special emphasis was paid to the magnetic behavior in terms of magnetic moment, interatomic distance, and atomic ordering because they play a key role in the modulation of magnetic multiferroic behavior. We observed that 10 mol. % Ni incorporation led to multiferroic behavior with considerable ferrimagnetic properties (saturation magnetization of 0.6 emu/g and a coercive field of 20 Oe) coupled with the inherent properties of displacive ferroelectricity (spontaneous polarization of 20 μC/cm2). A subsequent increase in the Ni substitution degree degraded the ferroelectricity due to a phase transition from a non-centrosymmetric rhombohedral to a centrosymmetric cubic system. We have shown that magnetic spins with a pronounced magnetic moment along the [001] direction are ferrimagnetically arranged when the interatomic distance between the magnetic transition metals at the octahedral site is less than 4 Å, resulting in significant magnetic properties The objective of this study is to provide a general methodology for modulating magnetic orders in ferroelectric perovskite oxides.

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publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Applied Physics
volume
135
issue
20
article number
204102
publisher
American Institute of Physics (AIP)
external identifiers
  • scopus:85194959829
ISSN
0021-8979
DOI
10.1063/5.0211130
language
English
LU publication?
yes
id
71ff577f-cce8-4ab1-820b-60e2f691d2e0
date added to LUP
2024-08-27 15:19:42
date last changed
2025-04-04 14:02:06
@article{71ff577f-cce8-4ab1-820b-60e2f691d2e0,
  abstract     = {{<p>The composition-dependent spin exchange interaction in a perovskite-structured Pb(Fe<sub>0.5−x</sub>Ni<sub>x</sub>)Nb<sub>1/2</sub>O<sub>3</sub> system has been studied to understand its multiferroicity at room-temperature. Special emphasis was paid to the magnetic behavior in terms of magnetic moment, interatomic distance, and atomic ordering because they play a key role in the modulation of magnetic multiferroic behavior. We observed that 10 mol. % Ni incorporation led to multiferroic behavior with considerable ferrimagnetic properties (saturation magnetization of 0.6 emu/g and a coercive field of 20 Oe) coupled with the inherent properties of displacive ferroelectricity (spontaneous polarization of 20 μC/cm<sup>2</sup>). A subsequent increase in the Ni substitution degree degraded the ferroelectricity due to a phase transition from a non-centrosymmetric rhombohedral to a centrosymmetric cubic system. We have shown that magnetic spins with a pronounced magnetic moment along the [001] direction are ferrimagnetically arranged when the interatomic distance between the magnetic transition metals at the octahedral site is less than 4 Å, resulting in significant magnetic properties The objective of this study is to provide a general methodology for modulating magnetic orders in ferroelectric perovskite oxides.</p>}},
  author       = {{Park, Ji Hun and Cho, Jae Hyeon and Marlton, Frederick P. and Jang, Haeseong and Lee, Ju Hyeon and Jang, Jongmoon and Hwang, Geon Tae and Pramanick, Abhijit and Jørgensen, Mads Ry Vogel and Kim, Min Gyu and Jo, Wook}},
  issn         = {{0021-8979}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{20}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{Journal of Applied Physics}},
  title        = {{Composition-dependent spin exchange interaction for multiferroicity in perovskite Pb(Fe<sub>1/2</sub>Nb<sub>1/2</sub>)O<sub>3</sub>}},
  url          = {{http://dx.doi.org/10.1063/5.0211130}},
  doi          = {{10.1063/5.0211130}},
  volume       = {{135}},
  year         = {{2024}},
}