A magnetic head is provided. The magnetic head comprises a magnetoresistance film, a flux guide, and a flux-guide regulating film. The flux guide guides a signal magnetic field from a magnetic recording medium to the magnetoresistance film. The flux-guide regulating film aligns magnetic domains of the flux guide into a single magnetic domain.

 
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> Magnetic sensing element having no variation in track width and capable of properly complying with track narrowing
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