Patent ID: 6728080
Filing Date: 2004-04-27
Classification: B82Y,G11B

Abstract:
A magnetic head comprising:a magnetic sensor for detecting a magnetic field; and a flux guide for introducing a magnetic flux into the magnetic sensor, wherein at least a portion of said flux guide is constructed to permit the magnetic flux to pass therethrough at a temperature of not lower than a predetermined temperature Tp, but not to permit the magnetic flux to pass therethrough at a temperature of lower than Tp, and wherein said flux guide is constituted by a material which exhibits ferromagnetic property at a temperature of not lower than the Tp and exhibits anti-ferromagnetic property at a temperature lower than Tp, wherein a flux transmitting region with a width narrower than the width of said flux guide is established in a part of said flux guide so that the magnetic flux can be exchanged with a magnetic recording medium via said flux transmitting region.