公开(公告)号：US20200274056A1

公开(公告)日：2020-08-27

申请号：US16775239

申请日：2020-01-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MASAYA SHIROTANI ,  TAICHI NAKAMURA ,  KAZUKI SAKAI

IPC: H01L41/20 ,  H01L41/12 ,  H01L41/47 ,  H02N2/18

Abstract: A magnetostrictive element that can exhibit a sufficiently large magnetostriction amount in a longitudinal direction is formed of a single crystal alloy magnetostrictive material. The magnetostrictive element has a shape of a plate-shaped rectangular parallelepiped, a main plane of the plate-shaped rectangular parallelepiped includes a plurality of magnetic domains that are regions where atomic magnetic moments are arranged in the same direction and whose width is 10 μm to 200 μm, and a total area rate of a magnetic domain where an angle difference between a lateral direction of the main plane and a direction of the magnetic moments of the magnetic domain is 10° or less to the main plane is 60% to 100%.