Synthesis of yttrium iron garnet/bismuth quantum dot heterostructures with localized plasmon enhanced magneto-optical performance
Synthesis of yttrium iron garnet/bismuth quantum dot heterostructures with localized plasmon enhanced magneto-optical performance
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具有局域等离子体增强磁光性能的钇铁石榴石/铋量子点异质结构的合成
DOI:
10.1016/j.jmst.2020.03.025
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发表时间:
2020-08
影响因子:
10.9
通讯作者:
Huaiwu Zhang
中科院分区:
文献类型:
--
作者:
Lichuan Jin;Caiyun Hong;Dainan Zhang;Yujie Feng;Yiheng Rao;Gang Wang;Qinghui Yang;Zhiyong Zhong;Huaiwu Zhang
Abstract Interactions between light and magnetic matter attracted great attention lately due to their potential applications in nanophotonics, spintronics, and high-accuracy sensing. Here, we grew bismuth quantum dots (Bi–QDs) with strong spin–orbit coupling on a magnetic insulator yttrium iron garnet (YIG) via molecular beam epitaxy. The YIG/Bi–QDs material shows an enhanced magneto-optical Kerr rotation up to 130% compared with that of a bare YIG film. The Bi–QDs were also introduced onto a lutetium–bismuth co-doped YIG film to form a hybrid system with remarkably enhanced Kerr rotation (from 1626 to 2341 mdeg). Ferromagnetic resonance measurements showed an increased effective magnetization as well as interfacial spin–orbit field in the YIG/Bi–QD heterostructures. Localized plasmons were mapped using electron energy loss spectroscopy with high spatial resolution, revealing enhanced plasmon intensity at both the Bi–QD surface and YIG/Bi–QD interface. Introducing Bi-QDs onto the YIG film enhanced Kerr rotation owing to the attenuated optical reflection and increased effective magnetization. The Bi–QD-enhanced magneto-optical effect enables development of efficient nanoscale light switching, spintronics, and even plasmonic nano-antennas.
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影响因子:
8.6
作者:
A. Takayama;T. Sato;S. Souma;T. Takahashi
通讯作者:
A. Takayama;T. Sato;S. Souma;T. Takahashi
影响因子:
2.1
作者:
A. Layadi;W. Cain;J. Lee;J. Artman
通讯作者:
A. Layadi;W. Cain;J. Lee;J. Artman
影响因子:
5.7
作者:
Guo, Peng-Feng;Wu, Shan;Zhu, Yong-Yuan
通讯作者:
Zhu, Yong-Yuan
影响因子:
8.6
作者:
Pan, Deng;Wei, Hong;Xu, Hongxing
通讯作者:
Xu, Hongxing
DOI:
10.1103/physrevb.96.014433
发表时间:
2017-07
期刊:
Bulletin of the American Physical Society
影响因子:
--
作者:
H. B. Vasili;B. Casals;R. Cichelero;J. Geshev;P. Gargiani;M. Valvidares;J. Herrero‐Martín;E. Pellegrin;J. Fontcuberta;G. Herranz
通讯作者:
H. B. Vasili;B. Casals;R. Cichelero;J. Geshev;P. Gargiani;M. Valvidares;J. Herrero‐Martín;E. Pellegrin;J. Fontcuberta;G. Herranz