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.