Micromagnetic studies of read and write process in magnetoresistive random access memory

作者: Dan Wei , C. K. Ong , Zheng Yang

DOI: 10.1063/1.372301

关键词:

摘要: A micromagnetic model is established to analyze the read and write processes in a magnetoresistance random access memories (MRAM) cell. The magnetoresistive curves of NiFeCo/interlayer/NiFeCo cells are analyzed compared with available experiments. switching fields two magnetic layers B MRAM cell studied versus different geometrical parameters word current IwA IwB corresponding, respectively, films B, related error under given sense Is, experiment. In width W, proper such as thickness aspect ratio (length over width) found based on analysis IwA−Is IwB−Is curves.

参考文章(13)
J. S. Moodera, Lisa R. Kinder, Terrilyn M. Wong, R. Meservey, Large magnetoresistance at room temperature in ferromagnetic thin film tunnel junctions. Physical Review Letters. ,vol. 74, pp. 3273- 3276 ,(1995) , 10.1103/PHYSREVLETT.74.3273
S. S. P. Parkin, K. P. Roche, M. G. Samant, P. M. Rice, R. B. Beyers, R. E. Scheuerlein, E. J. O’Sullivan, S. L. Brown, J. Bucchigano, D. W. Abraham, Yu Lu, M. Rooks, P. L. Trouilloud, R. A. Wanner, W. J. Gallagher, Exchange-biased magnetic tunnel junctions and application to nonvolatile magnetic random access memory (invited) Journal of Applied Physics. ,vol. 85, pp. 5828- 5833 ,(1999) , 10.1063/1.369932
Giselher Herzer, Magnetization process in nanocrystalline ferromagnets Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 133, pp. 1- 5 ,(1991) , 10.1016/0921-5093(91)90003-6
D. Wang, M. Tondra, J. M. Daughton, C. Nordman, A. V. Pohm, Spin dependent tunnel/spin-valve devices with different pinning structures made by photolithography Journal of Applied Physics. ,vol. 85, pp. 5255- 5257 ,(1999) , 10.1063/1.369958
P. Lubitz, Shu-Fan Cheng, K. Bussmann, G. A. Prinz, J. J. Krebs, J. M. Daughton, D. Wang, Structures with improved magnetic characteristics for giant magneto-resistance applications Journal of Applied Physics. ,vol. 85, pp. 5027- 5029 ,(1999) , 10.1063/1.370080
Yu Lu, R. A. Altman, A. Marley, S. A. Rishton, P. L. Trouilloud, Gang Xiao, W. J. Gallagher, S. S. P. Parkin, Shape-anisotropy-controlled magnetoresistive response in magnetic tunnel junctions Applied Physics Letters. ,vol. 70, pp. 2610- 2612 ,(1997) , 10.1063/1.118933
D. Wang, J. M. Daughton, K. Bussmann, G. A. Prinz, Magnetic properties of very thin single and multilayer NiFeCo and CoFe films deposited by sputtering Journal of Applied Physics. ,vol. 83, pp. 7034- 7036 ,(1998) , 10.1063/1.367724
J. M. Daughton, Magnetic Tunneling Applied to Memory (Invited) Journal of Applied Physics. ,vol. 81, pp. 3758- 3763 ,(1997) , 10.1063/1.365499
E. Y. Chen, S. Tehrani, T. Zhu, M. Durlam, H. Goronkin, Submicron spin valve magnetoresistive random access memory cell Journal of Applied Physics. ,vol. 81, pp. 3992- 3994 ,(1997) , 10.1063/1.364917
S. Tehrani, E. Chen, M. Durlam, M. DeHerrera, J. M. Slaughter, J. Shi, G. Kerszykowski, High density submicron magnetoresistive random access memory (invited) Journal of Applied Physics. ,vol. 85, pp. 5822- 5827 ,(1999) , 10.1063/1.369931