▎ 摘　　要

NOVELTY - The sensor has four magnetic tunnel junction (MTJ) magnetic-sensitive elements forming a wheatstone measuring bridge. Two of the MTJ magnetic sensitive elements are located in a gap between two magnetic force line collectors. Other two of the MTJ magnetic-sensitive elements are respectively located at bottoms of two magnetic lines of a force concentrator. The MTJ magnetic-sensitive elements are provided with an orderly stacked substrate that is composed of top and bottom electrode layers, two buffer layers, free and pinned ferromagnetic layers, a graphite barrier layer and a pinned layer. USE - Graphene MTJ magnetic field sensor. ADVANTAGE - The sensor is simple and compact in structure and convenient to manufacture, and occupies less space, and has reduced production cost. DESCRIPTION OF DRAWING(S) - The drawing shows a cross sectional view of a graphene MTJ magnetic field sensor. '(Drawing includes non-English language text)'