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arXiv · 1507.07321

Tunable exchange bias effect in magnetic Bi$_{0.9}$Gd$_{0.1}$Fe$_{0.9}$Ti$_{0.1}$O$_3$ nanoparticles at temperatures up to 250 K

M. A. Basith·F. A. Khan·Bashir Ahmmad·Shigeru Kubota·Fumihiko Hirose·D. -T. Ngo·Q. -H. Tran·K. Mølhave
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Abstract

The exchange bias (EB) effect has been observed in magnetic Bi$_{0.9}$Gd$_{0.1}$Fe$_{0.9}$Ti$_{0.1}$O$_3$ nanoparticles. The influence of magnetic field cooling on the exchange bias effect has also been investigated. The magnitude of the exchange bias field ($H_{EB}$) increases with the cooling magnetic field, showing that the strength of the exchange bias effect is tunable by the field cooling. The $H_{EB}$ values are also found to be dependent on the temperature. This magnetically tunable exchange bias obtained at temperatures up to 250 K in Bi$_{0.9}$Gd$_{0.1}$Fe$_{0.9}$Ti$_{0.1}$O$_3$ nanoparticles may be worthwhile for potential applications.

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M. A. Basith, F. A. Khan, Bashir Ahmmad, Shigeru Kubota, Fumihiko Hirose, D. -T. Ngo, Q. -H. Tran, K. Mølhave. 2015-07-27. Tunable exchange bias effect in magnetic Bi$_{0.9}$Gd$_{0.1}$Fe$_{0.9}$Ti$_{0.1}$O$_3$ nanoparticles at temperatures up to 250 K. https://arxiv.org/abs/1507.07321

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