公开(公告)号：US20200341301A1

公开(公告)日：2020-10-29

申请号：US16502514

申请日：2019-07-03

Applicant: University of Electronic Science and Technology of China

Inventor： Lichuan Jin ,  Kancheng Jia ,  Dainan Zhang ,  Huaiwu Zhang ,  Zhiyong Zhong ,  Qinghui Yang ,  Xiaoli Tang ,  Feiming Bai

IPC: G02F1/09 ,  H01F10/32 ,  H01F41/32 ,  C23C14/28 ,  C23C14/08 ,  C30B23/02 ,  C30B29/46 ,  G11B11/105

Abstract: The present invention relates to the technical field of superlattice magneto-optical material technologies, and in particular, to a superlattice material, and a preparation method and application thereof. According to description of embodiments, the superlattice material provided in the present invention has both a relatively good magnetic property of a ferrous garnet material and a good photoelectric absorption characteristic of a two-dimensional semiconductor material such as graphene. Magneto-optical Kerr effect data obtained through testing shows that: A saturated magneto-optical Kerr angle of the superlattice material in the present invention is 13 mdeg in a magnetic field of 2500 Oe, and a magneto-optical Kerr angle of the superlattice material is increased by 2.5 times compared with a nonsuperlattice ferrimagnetic thin film material into which no two-dimensional material is inserted, thereby achieving magneto-optical effect enhancement.

公开(公告)号：US11169402B2

公开(公告)日：2021-11-09

申请号：US16502514

申请日：2019-07-03

Applicant: University of Electronic Science and Technology of China

Inventor： Lichuan Jin ,  Kancheng Jia ,  Dainan Zhang ,  Huaiwu Zhang ,  Zhiyong Zhong ,  Qinghui Yang ,  Xiaoli Tang ,  Feiming Bai

IPC: G11B11/105 ,  H01F10/32 ,  H01F41/32 ,  H01F10/30 ,  H01F10/28 ,  G02F1/09 ,  C23C14/08 ,  C23C14/28 ,  C30B23/02 ,  C30B29/46

Abstract: The present invention relates to the technical field of superlattice magneto-optical material technologies, and in particular, to a superlattice material, and a preparation method and application thereof. According to description of embodiments, the superlattice material provided in the present invention has both a relatively good magnetic property of a ferrous garnet material and a good photoelectric absorption characteristic of a two-dimensional semiconductor material such as graphene. Magneto-optical Kerr effect data obtained through testing shows that: A saturated magneto-optical Kerr angle of the superlattice material in the present invention is 13 mdeg in a magnetic field of 2500 Oe, and a magneto-optical Kerr angle of the superlattice material is increased by 2.5 times compared with a nonsuperlattice ferrimagnetic thin film material into which no two-dimensional material is inserted, thereby achieving magneto-optical effect enhancement.

公开(公告)号：US11629102B2

公开(公告)日：2023-04-18

申请号：US17084655

申请日：2020-10-30

Applicant: University of Electronic Science and Technology of China

Inventor： Cheng Liu ,  Hongyang Zhang ,  Qinghui Yang ,  Lichuan Jin ,  Yuanxun Li ,  Huaiwu Zhang

IPC: C04B35/626 ,  H01B3/12

Abstract: A Li3Mg2SbO6-based microwave dielectric ceramic material easy to sinter and with high Q value, and a preparation method thereof are disclosed. A chemical formula of the material is Li3(Mg1-xZnx)2SbO6, wherein 0.02≤x≤0.08. The preparation method includes: 1) mixing and ball-milling Sb2O3 and Li2CO3 according to a chemical ratio and then drying, and conducting pre-sintering to obtain a Li3SbO4 phase; and 2) mixing and ball-milling MgO, ZnO and Li3SbO4 powder according a chemical ratio of Li3(Mg1-xZnx)2SbO6 and then drying, conducting granulation and sieving after adding an adhesive, pressing into a cylindrical body, and sintering the cylindrical body into ceramic in the air at 1325° C. and under normal pressure, wherein a dielectric constant is 7.2-8.5, a quality factor is 51844-97719 GHz, and a temperature coefficient of resonance frequency is −14-1 ppm/° C.