An extraordinary magnetoresistive device EMR having a discontinuous shunt structure. The discontinuous shunt structure improves the linearity of response of the EMR device. The EMR device includes a EMR heterostructure that includes an EMR active layer. The heterostructure can include first, second and third semiconductor layers, with the second layer being sandwiched between the first and third layers. The middle, or second semiconductor layer provides a two dimensional electron gas. The heterostructure has first and second opposed sides, with a pair of voltage leads and a pair of current leads connected with the first side of the structure. The discontinuous shunt structure is connected with the second side of the structure and may be in the form of a series of discontinuous, electrically conductive elements, such as semi-spherical gold elements.

 
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