Magnetic head

A magnetic head, comprising:

• a core having a read/write gap and an erase gap which are adjacent to each other;
• a first coil having a first number of turns and wound around a first part of said core for generating, when a first recording current flows in said first coil, a first recording magnetic field in a first direction upon said read/write gap;
• a second coil having a second number of turns and wound around a second part of said core adjacent to said first part of said core for generating, when a second recording current flows in said second coil, a second recording magnetic field in a second direction, which is opposite to said first direction, upon said read/write gap;
• and
• a third coil wound around a third part of said core for generating, when a DC erasing current flows in said third coil, an erase magnetic field in said first direction upon said erase gap;
• said second number of turns being less than said first number of turns by a predetermined number of turns so that said second coil has an inductance lower than an inductance of said first coil and a stray capacitance lower than a stray capacitance of said first coil, whereby a rise time of said second recording current is shorter than a rise time of said first recording current so as to correct an influence of a leaking bias magnetic field from said third coil which causes asymmetry of magnetization on a recording medium when each of said first and second recording currents flows simultaneously which said DC erasing current;
• wherein:
• said core comprises a read/write side portion, a center portion and an erase side portion;
• said read/write gap is formed between said read/write side portion and said center portion;
• said erase gap is formed between said erase side portion and said center portion;
• said first part and said second part of said core are provided on said read/write side portion;
• and
• said third part of said core is provided on said erase side portion.