| 摘要 |
A thin film material having a rectangular hysteresis characteristic along both easy and hard axes has a small d.c. biasing field applied at a small angle to the easy axis, producing a triangular hysteresis curve when observed along an axis perpendicular to the axis of the d.c. biasing field. The two resulting stable states are of greatly different permeability, thus enabling either a.c. or pulsed d.c. nondestructive readout. Switching is achieved by applying a saturating d.c. field along the axis perpendicular to the d.c. biasing field axis in either the positive or negative direction, and the readout field is also applied along the axis perpendicular to the d.c. biasing field axis.
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