Self consistent parameterized physical MTJ compact model for STT-RAM

Anurag Nigam, Kamaram Munira, Avik W. Ghosh, Stu Wolf, Eugene Chen, Mircea R. Stan, CAS 2010 Proceedings (International Semiconductor Conference) , 2 :423-426 (2010).


We present a physical compact model for magnetic tunnel junction (MTJ). Landau-Lifshitz-Gilbert (LLG) differential equation is solved in SPICE to derive the transient characteristics of MTJ. A modified version of the Simmons tunnel current equation captures the steady state properties of MTJ. The model results are validated with published experimental data.