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学者姓名:杨燕端
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Abstract :
Bi-doped rare earth iron garnet (Bi:RIG) crystal is an ideal magneto-optical material for optical isolators in the near-infrared band, which has been widely used in optical communication applications. In this paper, centimetersized and good-quality Ni2+-doped Bi:RIG crystals were successfully grown by top-seeded solution growth (TSSG). The transmittance reaches 72.6% at 1550 nm, which is higher than commercial Bi:TbIG crystal and close to the theoretical values of RIG crystals. Doping Ni can not only greatly improve the transmittance, magnetic, and magneto-optical properties, but also decrease the Faraday rotation temperature (FTC) and wavelength coefficients (FWC) of the Bi:RIG crystal. The FTC and FWC of (Bi0.37Ho1.18Eu0.83Gd0.62)(Fe4.20Ni0.25Ga0.55)O-12 crystal reduced to - 6.3 x 10(-4) K-1 and 8.0 x 10(-4) nm(-1), which are about 30% and 80% of commercial Bi:TbIG crystal, respectively. (Bi0.37Ho1.18Eu0.83Gd0.62)(Fe4.20Ni0.25Ga0.55)O-12 exhibits potential for utilization in new high -performance, wideband magneto-optical isolators, and is expected to find application in the field of wavelength division multiplexing fiber communication.
Keyword :
Crystal growth Crystal growth Magneto-optical material Magneto-optical material Ni/Bi co-doping Ni/Bi co-doping Rare earth iron garnet Rare earth iron garnet Top seeded solution growth Top seeded solution growth
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GB/T 7714 | Yang, Yanduan , Fan, Xiaoyu , Liu, Haipeng et al. A new Ni/Bi Co-doping rare earth iron garnet crystal with high transmittance, low temperature and wavelength coefficients [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2024 , 978 . |
MLA | Yang, Yanduan et al. "A new Ni/Bi Co-doping rare earth iron garnet crystal with high transmittance, low temperature and wavelength coefficients" . | JOURNAL OF ALLOYS AND COMPOUNDS 978 (2024) . |
APA | Yang, Yanduan , Fan, Xiaoyu , Liu, Haipeng , Wu, Junying , Yang, Yang , Chen, Xin et al. A new Ni/Bi Co-doping rare earth iron garnet crystal with high transmittance, low temperature and wavelength coefficients . | JOURNAL OF ALLOYS AND COMPOUNDS , 2024 , 978 . |
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Cubic Sillenite Bi25FeO40 (BFO) could become a new magneto-optical material due to its high concentration of Bi3+ and no birefringence. But its weak magnetism causes the magneto-optical properties to be far from the requirements of practical applications. Doping magnetic Fe3+ and Ni2+ ions to improve the magnetism and magneto-optical properties of BFO (Bi19Ni2.8Fe4.2O40) film on fluorine-doped tin oxide (BNFO/FTO) is discussed in this paper. Another focus of this paper is to discuss the magneto-optical properties modulated by the electric field. The cubic BNFO film has weak piezoelectric effects, which makes it difficult to modulate its magnetooptical effect by electric field. A polarity symmetry induced by the Schottky junction between Au metal layer and BNFO semiconductor layer (Au/BNFO) compensates for cubic symmetry, and the piezoelectric effect can be improved. By applying an electric field, its magnetic circular dichroism (MCD) ellipticity |Psi F| gradually decreases as a direct current voltage from 0 V to 10 V in a magnetic field of 2500 Oe, demonstrating the feasibility of this strategy. These results indicate a new way for highly symmetric magneto-optical materials to modulate magneto-optical effects in electric fields.
Keyword :
Au/BNFO/FTO film Au/BNFO/FTO film Magneto -electric coupling Magneto -electric coupling Magneto -optical effect Magneto -optical effect Piezoelectric effect Piezoelectric effect
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GB/T 7714 | Gao, Teng , Wu, Junying , Liang, Jinlun et al. Interface polarity brings a way to modulate magneto-optical effect of cubic Ni2+/Fe3+co-doped Bi25FeO40 film: Implications in piezoelectricity [J]. | APPLIED SURFACE SCIENCE , 2024 , 659 . |
MLA | Gao, Teng et al. "Interface polarity brings a way to modulate magneto-optical effect of cubic Ni2+/Fe3+co-doped Bi25FeO40 film: Implications in piezoelectricity" . | APPLIED SURFACE SCIENCE 659 (2024) . |
APA | Gao, Teng , Wu, Junying , Liang, Jinlun , Wang, Cheng , Liu, Mengli , Yang, Yanduan et al. Interface polarity brings a way to modulate magneto-optical effect of cubic Ni2+/Fe3+co-doped Bi25FeO40 film: Implications in piezoelectricity . | APPLIED SURFACE SCIENCE , 2024 , 659 . |
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