Magnetic member and electronic component

摘要

A magnetic member includes a plurality of superparamagnetic particles held by the magnetic member. Each of the plurality of superparamagnetic particles is formed with a particle size which is set at least such that a Neel relaxation time τn in the each of the superparamagnetic particles becomes shorter than a cycle P of an alternating current magnetic field applied to the magnetic member (τn

主权项

1. An electronic component comprising:
a plurality of magnetic members in a state where an external magnetic field as an alternating current magnetic field is applied, wherein each of the plurality of magnetic members has a plurality of superparamagnetic particles which is held by the magnetic member wherein each of the plurality of superparamagnetic particles is formed with a particle size which is set at least such that an influence of a temperature in an external environment and an anisotropy constant on a performance of magnetic response of each of the superparamagnetic particles can be suppressed, and wherein the plurality of magnetic members is arranged in parallel to each other, each of the magnetic members being formed in a ring-like shape; a plurality of exciting coils each of which is wound around a whole circumference of each of the magnetic members; a detecting coil which is wound around the magnetic members in such a manner as to stride across each of the magnetic members; and the electronic component being configured to function as a sensor to detect a current flowing through a conductive wire which passes through a ring-like portion in each of the magnetic members.