differ from the embodiment of write head 40 described herein and the present invention is intended to not be limited to the characteristics of the preferred embodiment of the write head 40 described herein after the deposition of an insulation layer 157 the electromagnetic field shield 56 is next deposited on the outward side of the write head 54 the shield 56 is generally circular in shape in order to provide a shield for the generally circular spiral induction coil 120 and the diameter of the shield 56 is generally at least as large as the diameter of the induction coil 120 the mr read head 58 includes several components which will be described below the shield 56 is disposed between the coil 120 and the mr read head 58 such that the mr read head 58 is shielded from the electromagnetic field of the induction coil 120 conceivably the shield diameter could be less than the diameter of the induction coil where effective shielding is still maintained furthermore where the shape of the induction coil is other than a generally circular shape the shield will advantageously although not necessarily adopt the same shape as the induction coil basically the shape of the shield 56 is a secondary consideration to its primary role of providing.