Electromagnetic effect material and ceramic electronic component
AssigneeMurata Manufacturing Co., Ltd.
InventorsTsuyoshi Kimura, Koji Okumura, Yasuhiro Yamaguchi, Kohei Haruki
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Abstract
A magnetoelectric effect material includes as a primary component, a polycrystalline oxide ceramic containing at least Sr, Co, and Fe. In the polycrystalline oxide ceramic, the crystal c-axis is oriented in a predetermined direction, and the degree of orientation of the c-axis is 0.2 or more by a Lotgering method. A component substrate is formed of this magnetoelectric effect material.
Claims14
A ferromagnetic dielectric material in which electric polarization is induced by application of a magnetic field and in which magnetization is controlled by application of an electric field, the ferromagnetic dielectric material comprising as a primary component, a polycrystalline oxide ceramic containing at least Sr, Co, and Fe,
- wherein in the polycrystalline oxide ceramic, a crystal c-axis is oriented and electrically polarized perpendicular to the crystal c-axis orientation,
- wherein a degree of orientation of the c-axis is 0.2 or more by a Lotgering method, and
- wherein the polycrystalline oxide ceramic is (Sr1-αBaα)3(Co1-βXβ)2Fe24O41+δ,
- where X represents at least one element selected from Ni, Zn, Mn, Mg, and Cu,
- 0≤α≤0.4,
- 0≤β≤0.3, and
- −1≤δ≤1.
Dependencies are inferred from the claim text.