Electric-field-induced spin disorder-to-order transition near a multiferroic triple phase point

Byung Kweon Jang; Jin Hong Lee; Kanghyun Chu; Pankaj Sharma; Gi Yeop Kim; Kyung Tae Ko; Kwang Eun Kim; Yong Jin Kim; Kyungrok Kang; Han Byul Jang; Hoyoung Jang; Min Hwa Jung; Kyung Song; Tae Yeong Koo; Si Young Choi; Jan Seidel; Yoon Hee Jeong; Hendrik Ohldag; Jun Sik Lee; Chan Ho Yang

doi:10.1038/nphys3902

Electric-field-induced spin disorder-to-order transition near a multiferroic triple phase point

Byung Kweon Jang, Jin Hong Lee, Kanghyun Chu, Pankaj Sharma, Gi Yeop Kim, Kyung Tae Ko, Kwang Eun Kim, Yong Jin Kim, Kyungrok Kang, Han Byul Jang, Hoyoung Jang, Min Hwa Jung, Kyung Song, Tae Yeong Koo, Si Young Choi, Jan Seidel, Yoon Hee Jeong, Hendrik Ohldag, Jun Sik Lee, Chan Ho Yang

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

46 Citations (Scopus)

Abstract

The emergence of a triple phase point in a two-dimensional parameter space (such as pressure and temperature) can offer unforeseen opportunities for the coupling of two seemingly independent order parameters. On the basis of this, we demonstrate the electric control of magnetic order by manipulating chemical pressure: lanthanum substitution in the antiferromagnetic ferroelectric BiFeO ₃ . Our demonstration relies on the finding that a multiferroic triple phase point of a single spin-disordered phase and two spin-ordered phases emerges near room temperature in Bi _0.9 La _0.1 FeO ₃ ferroelectric thin films. By using spatially resolved X-ray absorption spectroscopy, we provide direct evidence that the electric poling of a particular region of the compound near the triple phase point results in an antiferromagnetic phase while adjacent unpoled regions remain magnetically disordered, opening a promising avenue for magnetoelectric applications at room temperature.

Original language	English
Pages (from-to)	189-196
Number of pages	8
Journal	Nature Physics
Volume	13
Issue number	2
Early online date	3 Oct 2016
DOIs	https://doi.org/10.1038/nphys3902
Publication status	Published - Feb 2017
Externally published	Yes

Keywords

Ferroelectrics and multiferroics
Magnetic properties and materials
Phase transitions and critical phenomena

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Jang, B. K., Lee, J. H., Chu, K., Sharma, P., Kim, G. Y., Ko, K. T., Kim, K. E., Kim, Y. J., Kang, K., Jang, H. B., Jang, H., Jung, M. H., Song, K., Koo, T. Y., Choi, S. Y., Seidel, J., Jeong, Y. H., Ohldag, H., Lee, J. S., & Yang, C. H. (2017). Electric-field-induced spin disorder-to-order transition near a multiferroic triple phase point. Nature Physics, 13(2), 189-196. https://doi.org/10.1038/nphys3902

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title = "Electric-field-induced spin disorder-to-order transition near a multiferroic triple phase point",

abstract = " The emergence of a triple phase point in a two-dimensional parameter space (such as pressure and temperature) can offer unforeseen opportunities for the coupling of two seemingly independent order parameters. On the basis of this, we demonstrate the electric control of magnetic order by manipulating chemical pressure: lanthanum substitution in the antiferromagnetic ferroelectric BiFeO 3 . Our demonstration relies on the finding that a multiferroic triple phase point of a single spin-disordered phase and two spin-ordered phases emerges near room temperature in Bi 0.9 La 0.1 FeO 3 ferroelectric thin films. By using spatially resolved X-ray absorption spectroscopy, we provide direct evidence that the electric poling of a particular region of the compound near the triple phase point results in an antiferromagnetic phase while adjacent unpoled regions remain magnetically disordered, opening a promising avenue for magnetoelectric applications at room temperature. ",

keywords = "Ferroelectrics and multiferroics, Magnetic properties and materials, Phase transitions and critical phenomena",

author = "Jang, {Byung Kweon} and Lee, {Jin Hong} and Kanghyun Chu and Pankaj Sharma and Kim, {Gi Yeop} and Ko, {Kyung Tae} and Kim, {Kwang Eun} and Kim, {Yong Jin} and Kyungrok Kang and Jang, {Han Byul} and Hoyoung Jang and Jung, {Min Hwa} and Kyung Song and Koo, {Tae Yeong} and Choi, {Si Young} and Jan Seidel and Jeong, {Yoon Hee} and Hendrik Ohldag and Lee, {Jun Sik} and Yang, {Chan Ho}",

year = "2017",

month = feb,

doi = "10.1038/nphys3902",

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Jang, BK, Lee, JH, Chu, K, Sharma, P, Kim, GY, Ko, KT, Kim, KE, Kim, YJ, Kang, K, Jang, HB, Jang, H, Jung, MH, Song, K, Koo, TY, Choi, SY, Seidel, J, Jeong, YH, Ohldag, H, Lee, JS & Yang, CH 2017, 'Electric-field-induced spin disorder-to-order transition near a multiferroic triple phase point', Nature Physics, vol. 13, no. 2, pp. 189-196. https://doi.org/10.1038/nphys3902

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AU - Jang, Byung Kweon

AU - Lee, Jin Hong

AU - Chu, Kanghyun

AU - Sharma, Pankaj

AU - Kim, Gi Yeop

AU - Ko, Kyung Tae

AU - Kim, Kwang Eun

AU - Kim, Yong Jin

AU - Kang, Kyungrok

AU - Jang, Han Byul

AU - Jang, Hoyoung

AU - Jung, Min Hwa

AU - Song, Kyung

AU - Koo, Tae Yeong

AU - Choi, Si Young

AU - Seidel, Jan

AU - Jeong, Yoon Hee

AU - Ohldag, Hendrik

AU - Lee, Jun Sik

AU - Yang, Chan Ho

PY - 2017/2

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AB - The emergence of a triple phase point in a two-dimensional parameter space (such as pressure and temperature) can offer unforeseen opportunities for the coupling of two seemingly independent order parameters. On the basis of this, we demonstrate the electric control of magnetic order by manipulating chemical pressure: lanthanum substitution in the antiferromagnetic ferroelectric BiFeO 3 . Our demonstration relies on the finding that a multiferroic triple phase point of a single spin-disordered phase and two spin-ordered phases emerges near room temperature in Bi 0.9 La 0.1 FeO 3 ferroelectric thin films. By using spatially resolved X-ray absorption spectroscopy, we provide direct evidence that the electric poling of a particular region of the compound near the triple phase point results in an antiferromagnetic phase while adjacent unpoled regions remain magnetically disordered, opening a promising avenue for magnetoelectric applications at room temperature.

KW - Ferroelectrics and multiferroics

KW - Magnetic properties and materials

KW - Phase transitions and critical phenomena

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SP - 189

EP - 196

JO - Nature Physics

JF - Nature Physics

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ER -

Electric-field-induced spin disorder-to-order transition near a multiferroic triple phase point

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