@article{JORSTAD2024415612,

title = {Micromagnetic modeling of SOT-MRAM dynamics},

author = {Nils Petter Jørstad and Simone Fiorentini and Johannes Ender and Wolfgang Goes and Siegfried Selberherr and Viktor Sverdlov},

url = {https://www.sciencedirect.com/science/article/pii/S0921452623009791},

doi = {https://doi.org/10.1016/j.physb.2023.415612},

issn = {0921-4526},

year  = {2024},

date = {2024-01-01},

urldate = {2024-01-01},

journal = {Physica B: Condensed Matter},

volume = {676},

pages = {415612},

abstract = {We present a flexible and efficient approach to modeling the magnetization dynamics in modern SOT-MRAM cells, by coupling charge, spin, and magnetization dynamics in a three-dimensional framework. We expand on existing literature, to obtain spin current boundary conditions for modeling the Rashba-Edelstein effect. We compute the spin–orbit torques originating from both, the spin Hall and Rashba-Edelstein effect, and show that our model can reproduce experimental results for the thickness dependence of the spin torques in an Ir/CoFeB bilayer structure. Furthermore, we verify our approach by simulating magnetization reversal in field-free SOT-MRAM cells, and show that with the inclusion of the interfacial Dzyaloshinskii–Moriya interaction, we obtain domain wall motion similar to previously reported experimental results.},

keywords = {Domain walls, iDMI, Micromagnetics modeling, Rashba-Edelstein effect, SOT-MRAM},

pubstate = {published},

tppubtype = {article}

}