| 摘要 |
<p>PURPOSE:To improve stability and to reduce power consumption by superimposing a high coercive force ferromagnetic film pattern and a low coercive force ferromagnetic film pattern by interposing a superconductor layer. CONSTITUTION:A first conductor wire 1 is arranged on a substrate via an insulating layer. A superconductor pattern 6 having micro-Josephson junction for information readout, a second magnetic film pattern 3, and the thin film 8 of a superconductor having a critical magnetic field with the same degree as that of the superconductor used in a lead wire are provided via the insulating layer 5, and a first magnetic film pattern 4 is arranged. A second conductor wire 2 is arranged so as to cross with the position 1 of the magnetic film pattern via an insulating layer 9. The write of information is performed by supplying a pulse shape current to the conductor wires 1 and 2. Readout is performed by using a conductor pattern for information readout, a lead wire 7, and the conductor wire 2. Thus, no magnetic flux of the pattern 3 is inputted to the pattern 4 according to magnetic inversion, and instead of that, it is inputted to the pattern 6, and breaks the superconducting state of the pattern 6, then, it goes to a stationary conducting state, and a detection ratio can be heightened by utilizing the output of a voltage and detecting it with the conductor pattern for information readout.</p> |
