Magnetic spin transistor hybrid circuit element

Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode

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257421, 257552, 360113, 365 97, 365145, 365171, 3652435, H01L 2982

Patent

active

055656951

ABSTRACT:
A new nonvolatile hybrid memory cell is provided. The cell is comprised of a magnetic spin transistor storage element and one or two FET isolation elements. The magnetic spin transistor stores data indefinitely while drawing zero quiescent power. The FET is operated as a voltage controlled resistor, isolating the cell with a large electrical impedance when not powered and accessing the contents of the cell with a low impedance path when addressed by an appropriate voltage select signal. The cell can be used in an array of cells in a nonvolatile random access memory.

REFERENCES:
patent: 5432373 (1995-07-01), Johnson
Mark Johnson and R. H. Silsbee, Interfacial Charge-Spin Coupling; Injection and Detection of Spin Magnetization in Metals, Phys. Rev. Lett. 55, 1790 (1985).
Ibid, A Thermodynamic Analysis of Interfacial Transport and of the Thermomagnetoelectric System, Phys. Rev. B 35, 4959 (1987).
Mark Johnson and R. H. Silsbee, Coupling of Electronic Charge and Spin at a Ferromagnetic-Paramagnetic Interface, Phys. Rev. B 37, 5312 (1988).
Mark Johnson and R. H. Silsbee, The Spin Injection Experiment, Phys. Rev. B 37, 5326 (1988).
Mark Johnson and R. H. Silsbee, Electron Spin Injection and Detection at a Ferro-magnetic-Paramagnetic Interface, J. Appl. Phys. 63, 3934 (1988).
Mark Johnson, The Bipolar Spin Switch, Science 260, 320 (1993).
Mark Johnson, The All-Metal Spin Transistor, I.E.E.E. Spectrum Magazine 31 No. 5, 47 (1994).
James Daughton, Magnetoresistive Memory Technology, Thin Solid Films 216, 162 (1992).

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