| 摘要 |
A composition of materials that is ferromagnetic and whose properties may be varied by means of an applied electric field and has at least a first and second layer. The first layer may be a substance of the formula III-V, wherein III is at least one element of Group IIIA, and V is at least one of the elements As and Sb and may include other elements of Group VA. The second layer may be a substance of the formula Mn-V, wherein V is at least one of the elements As and Sb present in the first layer. This second layer may be less than approximately 500 nm thick, but thick enough to be ferromagnetic. The first layer and said second layer may be crystalline.
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