Magnetic control of ferroelectric polarization in a self-formed single magnetoelectric domain of multiferroic Ba3NbFe3Si 2O14

Nara Lee; Young Jai Choi; Sang Wook Cheong

doi:10.1063/1.4866187

Magnetic control of ferroelectric polarization in a self-formed single magnetoelectric domain of multiferroic Ba₃NbFe₃Si ₂O₁₄

Nara Lee, Young Jai Choi, Sang Wook Cheong

Department of Physics

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

26 Citations (Scopus)

Abstract

We have discovered strong magnetoelectric (ME) effects in the single chiral-helical magnetic state of single-crystalline langasite Ba ₃NbFe₃Si₂O₁₄ that is crystallographically chiral. The ferroelectric polarization, predominantly aligned along the a axis below the Nèel temperature of ∼27 K, changes in a highly non-linear fashion in the presence of in-plane magnetic fields (H) perpendicular to the a axis (H//b*). This ME effect as well as smaller ME effects in other directions exhibit no poling dependence, suggesting the presence of a self-formed single ME domain. In addition, these ME effects accompany no-measurable hysteresis, which is crucial for many technological applications.

Original language	English
Article number	072904
Journal	Applied Physics Letters
Volume	104
Issue number	7
DOIs	https://doi.org/10.1063/1.4866187
Publication status	Published - 2014 Feb 17

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.4866187

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title = "Magnetic control of ferroelectric polarization in a self-formed single magnetoelectric domain of multiferroic Ba3NbFe3Si 2O14",

abstract = "We have discovered strong magnetoelectric (ME) effects in the single chiral-helical magnetic state of single-crystalline langasite Ba 3NbFe3Si2O14 that is crystallographically chiral. The ferroelectric polarization, predominantly aligned along the a axis below the N{\`e}el temperature of ∼27 K, changes in a highly non-linear fashion in the presence of in-plane magnetic fields (H) perpendicular to the a axis (H//b*). This ME effect as well as smaller ME effects in other directions exhibit no poling dependence, suggesting the presence of a self-formed single ME domain. In addition, these ME effects accompany no-measurable hysteresis, which is crucial for many technological applications.",

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PY - 2014/2/17

Y1 - 2014/2/17

N2 - We have discovered strong magnetoelectric (ME) effects in the single chiral-helical magnetic state of single-crystalline langasite Ba 3NbFe3Si2O14 that is crystallographically chiral. The ferroelectric polarization, predominantly aligned along the a axis below the Nèel temperature of ∼27 K, changes in a highly non-linear fashion in the presence of in-plane magnetic fields (H) perpendicular to the a axis (H//b*). This ME effect as well as smaller ME effects in other directions exhibit no poling dependence, suggesting the presence of a self-formed single ME domain. In addition, these ME effects accompany no-measurable hysteresis, which is crucial for many technological applications.

AB - We have discovered strong magnetoelectric (ME) effects in the single chiral-helical magnetic state of single-crystalline langasite Ba 3NbFe3Si2O14 that is crystallographically chiral. The ferroelectric polarization, predominantly aligned along the a axis below the Nèel temperature of ∼27 K, changes in a highly non-linear fashion in the presence of in-plane magnetic fields (H) perpendicular to the a axis (H//b*). This ME effect as well as smaller ME effects in other directions exhibit no poling dependence, suggesting the presence of a self-formed single ME domain. In addition, these ME effects accompany no-measurable hysteresis, which is crucial for many technological applications.

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Magnetic control of ferroelectric polarization in a self-formed single magnetoelectric domain of multiferroic Ba₃NbFe₃Si ₂O₁₄

Abstract

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