Tuning the ferroelectric state in multiferroic TbMnO3 single crystal by a trapped-charge-induced internal electric field

Tao Zou; Zhiling Dun; Huibo Cao; Mengze Zhu; Haidong Zhou; Xianglin Ke

doi:10.1063/1.4895074

Tuning the ferroelectric state in multiferroic TbMnO₃ single crystal by a trapped-charge-induced internal electric field

Tao Zou, Zhiling Dun, Huibo Cao, Mengze Zhu, Haidong Zhou, Xianglin Ke

Single Crystal Diffraction

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

8 Scopus citations

Abstract

The pyroelectric current effects in multiferroic TbMnO₃ single crystal are reinvestigated in a wide temperature range. We report a pyroelectric current peak occurring around T = 107 K, which is much higher than the magnetic phase transition temperatures, after poling the sample from T ≥ 60 K to low temperatures, and we attribute it to the thermal release of trapped-charges in TbMnO₃. We also show that the trapped-charges form a strong internal electric field that remarkably controls the ferroelectric polarization state induced by the cycloidal Mn³⁺ spins at lower temperature.

Original language	English
Article number	104101
Journal	Journal of Applied Physics
Volume	116
Issue number	10
DOIs	https://doi.org/10.1063/1.4895074
State	Published - Sep 14 2014

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abstract = "The pyroelectric current effects in multiferroic TbMnO3 single crystal are reinvestigated in a wide temperature range. We report a pyroelectric current peak occurring around T = 107 K, which is much higher than the magnetic phase transition temperatures, after poling the sample from T ≥ 60 K to low temperatures, and we attribute it to the thermal release of trapped-charges in TbMnO3. We also show that the trapped-charges form a strong internal electric field that remarkably controls the ferroelectric polarization state induced by the cycloidal Mn3+ spins at lower temperature.",

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T1 - Tuning the ferroelectric state in multiferroic TbMnO3 single crystal by a trapped-charge-induced internal electric field

AU - Zou, Tao

AU - Dun, Zhiling

AU - Cao, Huibo

AU - Zhu, Mengze

AU - Zhou, Haidong

AU - Ke, Xianglin

PY - 2014/9/14

Y1 - 2014/9/14

N2 - The pyroelectric current effects in multiferroic TbMnO3 single crystal are reinvestigated in a wide temperature range. We report a pyroelectric current peak occurring around T = 107 K, which is much higher than the magnetic phase transition temperatures, after poling the sample from T ≥ 60 K to low temperatures, and we attribute it to the thermal release of trapped-charges in TbMnO3. We also show that the trapped-charges form a strong internal electric field that remarkably controls the ferroelectric polarization state induced by the cycloidal Mn3+ spins at lower temperature.

AB - The pyroelectric current effects in multiferroic TbMnO3 single crystal are reinvestigated in a wide temperature range. We report a pyroelectric current peak occurring around T = 107 K, which is much higher than the magnetic phase transition temperatures, after poling the sample from T ≥ 60 K to low temperatures, and we attribute it to the thermal release of trapped-charges in TbMnO3. We also show that the trapped-charges form a strong internal electric field that remarkably controls the ferroelectric polarization state induced by the cycloidal Mn3+ spins at lower temperature.

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Tuning the ferroelectric state in multiferroic TbMnO₃ single crystal by a trapped-charge-induced internal electric field

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