Room-temperature ferromagnetism in the Co-doped Ba0.5Sr 0.5TiO3 thin films

L. B. Luo; Y. G. Zhao; H. F. Tian; J. J. Yang; H. Y. Zhang; J. Q. Li; J. J. Ding; B. He; S. Q. Wei; C. Gao

doi:10.1063/1.2945282

Room-temperature ferromagnetism in the Co-doped Ba_0.5Sr _0.5TiO₃ thin films

L. B. Luo, Y. G. Zhao, H. F. Tian, J. J. Yang, H. Y. Zhang, J. Q. Li, J. J. Ding, B. He, S. Q. Wei, C. Gao

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Abstract

The authors report the room-temperature ferromagnetism in the epitaxial thin films of 3% Co-doped Ba_0.5Sr_0.5TiO₃ (CBSTO) grown by pulsed laser deposition. These films show the single phase character with Co dopants in the +2 state. More interestingly, ferromagnetic and ferroelectric transitions were observed at 570 and 150 K, respectively. The CBSTO films also show the exchange bias effect manifested by the negative shift and training effect of the hysteresis loops at 5 K. This work demonstrates that ferromagnetism can be induced in the ferroelectric materials, which is significant for shedding light on the mechanism of dopant induced ferromagnetism in insulators and applications.

Original language	English (US)
Article number	232507
Journal	Applied Physics Letters
Volume	92
Issue number	23
DOIs	https://doi.org/10.1063/1.2945282
State	Published - 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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title = "Room-temperature ferromagnetism in the Co-doped Ba0.5Sr 0.5TiO3 thin films",

abstract = "The authors report the room-temperature ferromagnetism in the epitaxial thin films of 3% Co-doped Ba0.5Sr0.5TiO3 (CBSTO) grown by pulsed laser deposition. These films show the single phase character with Co dopants in the +2 state. More interestingly, ferromagnetic and ferroelectric transitions were observed at 570 and 150 K, respectively. The CBSTO films also show the exchange bias effect manifested by the negative shift and training effect of the hysteresis loops at 5 K. This work demonstrates that ferromagnetism can be induced in the ferroelectric materials, which is significant for shedding light on the mechanism of dopant induced ferromagnetism in insulators and applications.",

author = "Luo, {L. B.} and Zhao, {Y. G.} and Tian, {H. F.} and Yang, {J. J.} and Zhang, {H. Y.} and Li, {J. Q.} and Ding, {J. J.} and B. He and Wei, {S. Q.} and C. Gao",

year = "2008",

doi = "10.1063/1.2945282",

language = "English (US)",

volume = "92",

journal = "Applied Physics Letters",

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T1 - Room-temperature ferromagnetism in the Co-doped Ba0.5Sr 0.5TiO3 thin films

AU - Luo, L. B.

AU - Zhao, Y. G.

AU - Tian, H. F.

AU - Yang, J. J.

AU - Zhang, H. Y.

AU - Li, J. Q.

AU - Ding, J. J.

AU - He, B.

AU - Wei, S. Q.

AU - Gao, C.

PY - 2008

Y1 - 2008

N2 - The authors report the room-temperature ferromagnetism in the epitaxial thin films of 3% Co-doped Ba0.5Sr0.5TiO3 (CBSTO) grown by pulsed laser deposition. These films show the single phase character with Co dopants in the +2 state. More interestingly, ferromagnetic and ferroelectric transitions were observed at 570 and 150 K, respectively. The CBSTO films also show the exchange bias effect manifested by the negative shift and training effect of the hysteresis loops at 5 K. This work demonstrates that ferromagnetism can be induced in the ferroelectric materials, which is significant for shedding light on the mechanism of dopant induced ferromagnetism in insulators and applications.

AB - The authors report the room-temperature ferromagnetism in the epitaxial thin films of 3% Co-doped Ba0.5Sr0.5TiO3 (CBSTO) grown by pulsed laser deposition. These films show the single phase character with Co dopants in the +2 state. More interestingly, ferromagnetic and ferroelectric transitions were observed at 570 and 150 K, respectively. The CBSTO films also show the exchange bias effect manifested by the negative shift and training effect of the hysteresis loops at 5 K. This work demonstrates that ferromagnetism can be induced in the ferroelectric materials, which is significant for shedding light on the mechanism of dopant induced ferromagnetism in insulators and applications.

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Room-temperature ferromagnetism in the Co-doped Ba_0.5Sr _0.5TiO₃ thin films

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