Patent ID: 8792211
Filing Date: 2014-07-29
Classification: G11B

Abstract:
1. A data storage device comprising: a magnetic recording medium; a magnetic recording head comprising a main pole, wherein the main pole has a surface facing the magnetic recording medium; a power supply; a controller coupled to the magnetic recording head for controlling writing information to and reading information from the magnetic recording medium; and a switching device for electrically coupling the power supply between the main pole and the magnetic recording medium in response to a signal provided from the controller when the controller is controlling writing information to the magnetic recording medium, wherein the magnetic recording medium comprises a plurality of layers, and wherein at least a first layer of the plurality of layers comprises a heating layer, a second layer of the plurality of layers comprises a field enhanced conduction layer, and a third layer of the plurality of layers comprises an electrode layer, the electrode layer electrically coupleable to the power supply and the main pole of the magnetic recording head by the switching device for heating a portion of the heating layer opposite the magnetic recording head during writing of data by the magnetic recording head to the magnetic recording medium.