Effect of adjacent layers on crystallization and magnetoresistance in CoFeB/MgO/CoFeB magnetic tunnel junction

IEEE Transactions on Magnetics

Volumn 42, Issue 10, 2006, Pages 2639-2641

  Wang, Yung Hung ^b   Laughlin, David E ^a   Zhu, Jian Gang ^a  

^a CARNEGIE MELLON UNIVERSITY   (United States)

^b INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE   (Taiwan)

Author keywords

CoFeB; crystallization; MgO barrier

Indexed keywords

EID: 85008042591     PISSN: 00189464     EISSN: 19410069     Source Type: Journal    
DOI: 10.1109/TMAG.2006.879739     Document Type: Article

References (9)

1. S. S. P. Parkin, C. Kaiser, A. Panchula, P. M. Rice, B. Hughes, M. Samant, and S.-H. Yang, “Giant tunneling magnetoresistance at room temperature with MgO (100) tunnel barriers,” Nature Mater., vol. 3, pp. 862–867, 2004.
2. S. Yuasa, T. Nagahama, A. Fukushima, Y. Suzuki, and K. Ando, “Giant room-temperature magnetoresistance in single-crystal Fe/MgO/Fe magnetic tunnel junctions,” Nature Mater., vol. 3, pp. 868–871, 2004.
3. H. W. H. Butler, X.-G. Zhang, T. C. Schulthess, and J. M. MacLaren, “Spin-dependent tunneling conductance of Fe/MgO/Fe sandwiches,” Phys. Rev. B, vol. 63, pp. 054–416, 2001.
4. X.-G. Zhang and W. H. Butler, “Large magnetoresistance in bcc Co/MgO/Co and FeCo/MgO/FeCo tunnel junctions,” Phys. Rev. B, vol. 70, p. 172407,2004.
5. C. Park, J. Zhu, M. T. Moneck, Y. Peng, and D. E. Laughlin, “Annealing effects on structural and transport properties of RF-sputtered CoFeB/MgO/CoFeB magnetic tunnel junctions,” J. Appl. Phys., vol. 99, pp. 08A901/1-3, 2006.
6. D. A. Porter and K. E. Easterling, Phase Transformations in Metals and Alloys, 2nd ed. London, U.K.: Chapman & Hall, 1992, ch. 3 & 5.
7. S. Yuasa, Y. Suzuki, T. Katayama, and K. Ando, “Characterization of growth and crystallization processes in CoFeB/MgO/CoFeB magnetic tunnel junction structure by reflective high-energy electron diffraction,” Appl. Phys. Lett., vol. 87, p. 242 503, 2005.
8. T. B. Massalski, Binary Alloy Phase Diagrams. Materials Park, OH: ASM International, 1990, vol. 2, pp. 1186–1187.
9. Y. Wang, W. Chen, S. Yang, K. Shen, C. Park, M. Kao, and M. Tsai, “Interfacial and annealing effects on magnetic properties of CoFeB thin films,” J. Appl. Phys., vol. 99, pp. 08M307/1-3, 2006.