Magnetoelectricity in the system RAl3 (BO3) 4 (R = Tb, Ho, Er, Tm)

K. C. Liang; R. P. Chaudhury; B. Lorenz; Y. Y. Sun; L. N. Bezmaternykh; I. A. Gudim; V. L. Temerov; C. W. Chu

doi:10.1088/1742-6596/400/3/032046

Magnetoelectricity in the system RAl₃ (BO₃) ₄ (R = Tb, Ho, Er, Tm)

K. C. Liang, R. P. Chaudhury, B. Lorenz, Y. Y. Sun, L. N. Bezmaternykh, I. A. Gudim, V. L. Temerov, C. W. Chu

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Abstract

The magnetoelectric effect in the system RAl₃(BO ₃)₄ (R = Tb, Ho, Er, Tm) is investigated between 3 K and room temperature and at magnetic fields up to 70 kOe. We show a systematic increase of the magnetoelectric effect with decreasing magnetic anisotropy of the rare earth moment. A giant magnetoelectric polarization is found in the magnetically (nearly) isotropic HoAl₃(BO₃)₄. The polarization value in transverse field geometry at 70 kOe reaches 3600 μC/m² which is significantly higher than reported values for the field-induced polarization of linear magnetoelectric or even multiferroic compounds. The results indicate a very strong coupling of the f-moments to the lattice. They further indicate the importance of the field-induced ionic displacements in the unit cell resulting in a polar distortion and a change in symmetry on a microscopic scale. The system RAl₃(BO₃) ₄ could be interesting for the technological utilization of the high-field magnetoelectric effect.

Original language	English
Article number	032046
Journal	Journal of Physics: Conference Series
Volume	400
Issue number	PART 3
DOIs	https://doi.org/10.1088/1742-6596/400/3/032046
Publication status	Published - 2012
Event	26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China Duration: 2011 Aug 10 → 2011 Aug 17

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1088/1742-6596/400/3/032046

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title = "Magnetoelectricity in the system RAl3 (BO3) 4 (R = Tb, Ho, Er, Tm)",

abstract = "The magnetoelectric effect in the system RAl3(BO 3)4 (R = Tb, Ho, Er, Tm) is investigated between 3 K and room temperature and at magnetic fields up to 70 kOe. We show a systematic increase of the magnetoelectric effect with decreasing magnetic anisotropy of the rare earth moment. A giant magnetoelectric polarization is found in the magnetically (nearly) isotropic HoAl3(BO3)4. The polarization value in transverse field geometry at 70 kOe reaches 3600 μC/m2 which is significantly higher than reported values for the field-induced polarization of linear magnetoelectric or even multiferroic compounds. The results indicate a very strong coupling of the f-moments to the lattice. They further indicate the importance of the field-induced ionic displacements in the unit cell resulting in a polar distortion and a change in symmetry on a microscopic scale. The system RAl3(BO3) 4 could be interesting for the technological utilization of the high-field magnetoelectric effect.",

author = "Liang, {K. C.} and Chaudhury, {R. P.} and B. Lorenz and Sun, {Y. Y.} and Bezmaternykh, {L. N.} and Gudim, {I. A.} and Temerov, {V. L.} and Chu, {C. W.}",

year = "2012",

doi = "10.1088/1742-6596/400/3/032046",

language = "English",

volume = "400",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

publisher = "IOP Publishing Ltd.",

number = "PART 3",

note = "26th International Conference on Low Temperature Physics, LT 2011 ; Conference date: 10-08-2011 Through 17-08-2011",

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TY - JOUR

T1 - Magnetoelectricity in the system RAl3 (BO3) 4 (R = Tb, Ho, Er, Tm)

AU - Liang, K. C.

AU - Chaudhury, R. P.

AU - Lorenz, B.

AU - Sun, Y. Y.

AU - Bezmaternykh, L. N.

AU - Gudim, I. A.

AU - Temerov, V. L.

AU - Chu, C. W.

PY - 2012

Y1 - 2012

N2 - The magnetoelectric effect in the system RAl3(BO 3)4 (R = Tb, Ho, Er, Tm) is investigated between 3 K and room temperature and at magnetic fields up to 70 kOe. We show a systematic increase of the magnetoelectric effect with decreasing magnetic anisotropy of the rare earth moment. A giant magnetoelectric polarization is found in the magnetically (nearly) isotropic HoAl3(BO3)4. The polarization value in transverse field geometry at 70 kOe reaches 3600 μC/m2 which is significantly higher than reported values for the field-induced polarization of linear magnetoelectric or even multiferroic compounds. The results indicate a very strong coupling of the f-moments to the lattice. They further indicate the importance of the field-induced ionic displacements in the unit cell resulting in a polar distortion and a change in symmetry on a microscopic scale. The system RAl3(BO3) 4 could be interesting for the technological utilization of the high-field magnetoelectric effect.

AB - The magnetoelectric effect in the system RAl3(BO 3)4 (R = Tb, Ho, Er, Tm) is investigated between 3 K and room temperature and at magnetic fields up to 70 kOe. We show a systematic increase of the magnetoelectric effect with decreasing magnetic anisotropy of the rare earth moment. A giant magnetoelectric polarization is found in the magnetically (nearly) isotropic HoAl3(BO3)4. The polarization value in transverse field geometry at 70 kOe reaches 3600 μC/m2 which is significantly higher than reported values for the field-induced polarization of linear magnetoelectric or even multiferroic compounds. The results indicate a very strong coupling of the f-moments to the lattice. They further indicate the importance of the field-induced ionic displacements in the unit cell resulting in a polar distortion and a change in symmetry on a microscopic scale. The system RAl3(BO3) 4 could be interesting for the technological utilization of the high-field magnetoelectric effect.

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DO - 10.1088/1742-6596/400/3/032046

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AN - SCOPUS:84873644103

SN - 1742-6588

VL - 400

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - PART 3

M1 - 032046

T2 - 26th International Conference on Low Temperature Physics, LT 2011

Y2 - 10 August 2011 through 17 August 2011

ER -

Magnetoelectricity in the system RAl₃ (BO₃) ₄ (R = Tb, Ho, Er, Tm)

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