公开(公告)号：US20230245809A1

公开(公告)日：2023-08-03

申请号：US18159390

申请日：2023-01-25

Applicant: TDK CORPORATION

Inventor： Hajime AMANO ,  Kensuke ARA ,  Kazuhiro YOSHIDOME ,  Risako TSURUMARU

IPC: H01F10/00 ,  H01F10/14 ,  H01F10/16

CPC classification number: H01F10/007 ,  H01F10/14 ,  H01F10/16

Abstract: A nanogranular magnetic film includes a structure including first phases comprised of nano-domains dispersed in a second phase. The first phases include at least one selected from the group consisting of Fe, Co, and Ni. The second phase includes at least one selected from the group consisting of O, N, and F. A ratio of a volume of the first phases to a total volume of the first phases and the second phase is 65% or less. A noble gas element is included at 0.20 at % or more and 0.80 at % or less.

公开(公告)号：US20230245810A1

公开(公告)日：2023-08-03

申请号：US18159313

申请日：2023-01-25

Applicant: TDK CORPORATION

Inventor： Hajime AMANO ,  Kensuke ARA ,  Kazuhiro YOSHIDOME ,  Risako TSURUMARU

IPC: H01F10/13 ,  C22C45/02

CPC classification number: H01F10/131 ,  C22C45/02

Abstract: A nanogranular magnetic film includes a structure including first phases comprised of nano-domains dispersed in a second phase. The first phases include at least one selected from the group consisting of Fe, Co, and Ni. The second phase includes at least one selected from the group consisting of O, N, and F. A ratio of a volume of the first phases to a total volume of the first phases and the second phase is 65% or less. The nanogranular magnetic film has a porosity of 0.17 or more and 0.30 or less.