| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a magnetic field sensor using adjustable graphene. <P>SOLUTION: The magnetic field sensor adopts a graphene sense layer, and Lorentz force acting on a charge carrier transferring in the sense layer changes a path of the charged carrier traveling through the graphene layer. Changes of the path indicating presence of the magnetic field can be detected. The sensor includes one or a plurality of gate electrodes separated from the graphene layer by non-magnetic electric insulating material. Electric resistance of the graphene layer is changed by application of a gate voltage on the gate electrode, and sensitivity and a speed of the sensor is controlled by using application of the gate voltage. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
