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STT-MTJ

Aswathyn

Can anyone help me to plot R-V curve  of STT-MTJ in cadence . As I am new to cadence, how to obtain the same from dc analysis. I am attaching the schematic. I am giving a pulse of -1 to 1v. . When I plot R  by taking (V/I) and v it is shown for Parallel to antiparallel switching (red portion in waveform). but not showing for AP-P state. As it is a pulse both will come automatically or need to do some settings.

  • Dear Aswathyn,

    Aswathyn said:
    When I plot R  by taking (V/I) and v it is shown for Parallel to antiparallel switching (red portion in waveform). but not showing for AP-P state. As it is a pulse both will come automatically or need to do some settings.

    You might refer to the 2015 IEEE student paper detailing the modeling and simulation of a STT-MTJ in SPICE:

    Chong Jian Yee, F. O. Hatem, T. N. Kumar and H. A. F. Almurib, "Compact SPICE modeling of STT-MTJ device," 2015 IEEE Student Conference on Research and Development (SCOReD), 2015, pp. 625-628, doi: 10.1109/SCORED.2015.7449413.

    The author discusses how he did the simulation and notes that two simulations are performed to excite the parallel and anti-parallel modes of operation.

    Shawn

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