Data on hard drives would be many times faster written than could be the case now, as shown by research of a group of physicists from. By the magneetdomeintjes with lasers to heat, would drives work faster.
In a hard disk to move the read / write heads at a rapid pace across the platters to small magnetic domeintjes with their magnetic field to manipulate. For reading data, it is sufficient that the influence of the magneetdomeintjes on the resistance in the read head to measure, but data to write must a magnetic field be generated. The write head generates a very local magnetic field causing the direction of the magnetic field in the magneetdomeintjes, or bit, is changed.
According to research of the employees of the university of York and a few other research centres, including the Institute for Molecules and Materials, Radboud University Nijmegen, can data on hard drives, however, much more likely to be written. The magneetdomeintjes be or not with a magnetic field reversed to a 0 to a 1 or a 1 into a 0 to change, but with the help of a laser.
By the magneetdomeintjes very briefly, for about 100 femtosecondes, with a laser pulse to heat, turned out the magnetic field to reverse. Previously, it was assumed that this effect without an external magnetic field, is unpredictable, but it is heated to approximately 800 degrees was sufficient for the rotation to happen. The biggest advantage of the laser technique is its speed: data would be hundreds of times faster written. In addition, the laser technique, more fuel-efficient than the magnetic method.
