Manipulating magnetoelectric energy landscape in multiferroics

Yen-Lin Huang; Dmitri Nikonov; Christopher Addiego; Rajesh V. Chopdekar; Bhagwati Prasad; Lei Zhang; Jyotirmoy Chatterjee; Heng Jui Liu; Alan Farhan; Ying-Hao Chu; Mengmeng Yang; Maya Ramesh; Zi Qiang Qiu; Bryan D. Huey; Chia Ching Lin; Tanay Gosavi; Jorge Íñiguez; Jeffrey Bokor; Xiaoqing Pan; Ian Young; Lane W. Martin; Ramamoorthy Ramesh

doi:10.1038/s41467-020-16727-2

Manipulating magnetoelectric energy landscape in multiferroics

Yen-Lin Huang, Dmitri Nikonov, Christopher Addiego, Rajesh V. Chopdekar, Bhagwati Prasad, Lei Zhang, Jyotirmoy Chatterjee, Heng Jui Liu, Alan Farhan, Ying-Hao Chu, Mengmeng Yang, Maya Ramesh, Zi Qiang Qiu, Bryan D. Huey, Chia Ching Lin, Tanay Gosavi, Jorge Íñiguez, Jeffrey Bokor, Xiaoqing Pan, Ian YoungLane W. Martin, Ramamoorthy Ramesh^*

^*Corresponding author for this work

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

62 Scopus citations

Abstract

Magnetoelectric coupling at room temperature in multiferroic materials, such as BiFeO₃, is one of the leading candidates to develop low-power spintronics and emerging memory technologies. Although extensive research activity has been devoted recently to exploring the physical properties, especially focusing on ferroelectricity and antiferromagnetism in chemically modified BiFeO₃, a concrete understanding of the magnetoelectric coupling is yet to be fulfilled. We have discovered that La substitutions at the Bi-site lead to a progressive increase in the degeneracy of the potential energy landscape of the BiFeO₃ system exemplified by a rotation of the polar axis away from the 〈111〉_pc towards the 〈112〉_pc discretion. This is accompanied by corresponding rotation of the antiferromagnetic axis as well, thus maintaining the right-handed vectorial relationship between ferroelectric polarization, antiferromagnetic vector and the Dzyaloshinskii-Moriya vector. As a consequence, La-BiFeO₃ films exhibit a magnetoelectric coupling that is distinctly different from the undoped BiFeO₃ films.

Original language	English
Article number	2836
Journal	Nature Communications
Volume	11
Issue number	1
DOIs	https://doi.org/10.1038/s41467-020-16727-2
State	Published - 1 Dec 2020

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Huang, Y.-L., Nikonov, D., Addiego, C., Chopdekar, R. V., Prasad, B., Zhang, L., Chatterjee, J., Liu, H. J., Farhan, A., Chu, Y.-H., Yang, M., Ramesh, M., Qiu, Z. Q., Huey, B. D., Lin, C. C., Gosavi, T., Íñiguez, J., Bokor, J., Pan, X., ... Ramesh, R. (2020). Manipulating magnetoelectric energy landscape in multiferroics. Nature Communications, 11(1), Article 2836. https://doi.org/10.1038/s41467-020-16727-2

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title = "Manipulating magnetoelectric energy landscape in multiferroics",

abstract = "Magnetoelectric coupling at room temperature in multiferroic materials, such as BiFeO3, is one of the leading candidates to develop low-power spintronics and emerging memory technologies. Although extensive research activity has been devoted recently to exploring the physical properties, especially focusing on ferroelectricity and antiferromagnetism in chemically modified BiFeO3, a concrete understanding of the magnetoelectric coupling is yet to be fulfilled. We have discovered that La substitutions at the Bi-site lead to a progressive increase in the degeneracy of the potential energy landscape of the BiFeO3 system exemplified by a rotation of the polar axis away from the 〈111〉pc towards the 〈112〉pc discretion. This is accompanied by corresponding rotation of the antiferromagnetic axis as well, thus maintaining the right-handed vectorial relationship between ferroelectric polarization, antiferromagnetic vector and the Dzyaloshinskii-Moriya vector. As a consequence, La-BiFeO3 films exhibit a magnetoelectric coupling that is distinctly different from the undoped BiFeO3 films.",

author = "Yen-Lin Huang and Dmitri Nikonov and Christopher Addiego and Chopdekar, {Rajesh V.} and Bhagwati Prasad and Lei Zhang and Jyotirmoy Chatterjee and Liu, {Heng Jui} and Alan Farhan and Ying-Hao Chu and Mengmeng Yang and Maya Ramesh and Qiu, {Zi Qiang} and Huey, {Bryan D.} and Lin, {Chia Ching} and Tanay Gosavi and Jorge {\'I}{\~n}iguez and Jeffrey Bokor and Xiaoqing Pan and Ian Young and Martin, {Lane W.} and Ramamoorthy Ramesh",

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year = "2020",

month = dec,

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doi = "10.1038/s41467-020-16727-2",

language = "English",

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Huang, Y-L, Nikonov, D, Addiego, C, Chopdekar, RV, Prasad, B, Zhang, L, Chatterjee, J, Liu, HJ, Farhan, A, Chu, Y-H, Yang, M, Ramesh, M, Qiu, ZQ, Huey, BD, Lin, CC, Gosavi, T, Íñiguez, J, Bokor, J, Pan, X, Young, I, Martin, LW & Ramesh, R 2020, 'Manipulating magnetoelectric energy landscape in multiferroics', Nature Communications, vol. 11, no. 1, 2836. https://doi.org/10.1038/s41467-020-16727-2

TY - JOUR

T1 - Manipulating magnetoelectric energy landscape in multiferroics

AU - Huang, Yen-Lin

AU - Nikonov, Dmitri

AU - Addiego, Christopher

AU - Chopdekar, Rajesh V.

AU - Prasad, Bhagwati

AU - Zhang, Lei

AU - Chatterjee, Jyotirmoy

AU - Liu, Heng Jui

AU - Farhan, Alan

AU - Chu, Ying-Hao

AU - Yang, Mengmeng

AU - Ramesh, Maya

AU - Qiu, Zi Qiang

AU - Huey, Bryan D.

AU - Lin, Chia Ching

AU - Gosavi, Tanay

AU - Íñiguez, Jorge

AU - Bokor, Jeffrey

AU - Pan, Xiaoqing

AU - Young, Ian

AU - Martin, Lane W.

AU - Ramesh, Ramamoorthy

PY - 2020/12/1

Y1 - 2020/12/1

N2 - Magnetoelectric coupling at room temperature in multiferroic materials, such as BiFeO3, is one of the leading candidates to develop low-power spintronics and emerging memory technologies. Although extensive research activity has been devoted recently to exploring the physical properties, especially focusing on ferroelectricity and antiferromagnetism in chemically modified BiFeO3, a concrete understanding of the magnetoelectric coupling is yet to be fulfilled. We have discovered that La substitutions at the Bi-site lead to a progressive increase in the degeneracy of the potential energy landscape of the BiFeO3 system exemplified by a rotation of the polar axis away from the 〈111〉pc towards the 〈112〉pc discretion. This is accompanied by corresponding rotation of the antiferromagnetic axis as well, thus maintaining the right-handed vectorial relationship between ferroelectric polarization, antiferromagnetic vector and the Dzyaloshinskii-Moriya vector. As a consequence, La-BiFeO3 films exhibit a magnetoelectric coupling that is distinctly different from the undoped BiFeO3 films.

AB - Magnetoelectric coupling at room temperature in multiferroic materials, such as BiFeO3, is one of the leading candidates to develop low-power spintronics and emerging memory technologies. Although extensive research activity has been devoted recently to exploring the physical properties, especially focusing on ferroelectricity and antiferromagnetism in chemically modified BiFeO3, a concrete understanding of the magnetoelectric coupling is yet to be fulfilled. We have discovered that La substitutions at the Bi-site lead to a progressive increase in the degeneracy of the potential energy landscape of the BiFeO3 system exemplified by a rotation of the polar axis away from the 〈111〉pc towards the 〈112〉pc discretion. This is accompanied by corresponding rotation of the antiferromagnetic axis as well, thus maintaining the right-handed vectorial relationship between ferroelectric polarization, antiferromagnetic vector and the Dzyaloshinskii-Moriya vector. As a consequence, La-BiFeO3 films exhibit a magnetoelectric coupling that is distinctly different from the undoped BiFeO3 films.

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U2 - 10.1038/s41467-020-16727-2

DO - 10.1038/s41467-020-16727-2

M3 - Article

C2 - 32504063

AN - SCOPUS:85085987429

SN - 2041-1723

VL - 11

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 2836

ER -

Manipulating magnetoelectric energy landscape in multiferroics

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