Effect of controlled asymmetry on the switching characteristics of ring-based MRAM design

IEEE Transactions on Nanotechnology

Volumn 5, Issue 3, 2006, Pages 249-253

  Mani, Anand Subra ^a,b   Geerpuram, Dwarakanath ^b   Baskaran, Vidhya Shankar ^b   Metlushko, Vitali ^b,c,d  

^a IEEE   (United States)

^b 1120 Science and Engineering Offices   (United States)

^c Department of Electrical and Computer Engineering ^*  (United States)

^d UNIVERSITY OF ILLINOIS AT CHICAGO   (United States)

Author keywords

Magnetic anisotropy; Magnetic memories; Magnetization processes; Magnetization reversal

Indexed keywords

MAGNETIC MEMORIES; MAGNETIZATION PROCESSES; MAGNETIZATION REVERSAL; VORTEX FORMATION;

CONTROLLABILITY; MAGNETIC ANISOTROPY; MAGNETIC PROPERTIES; MAGNETIZATION; SWITCHING SYSTEMS; VORTEX FLOW;

STATIC RANDOM ACCESS STORAGE;

EID: 33646729731     PISSN: 1536125X     EISSN: None     Source Type: Journal    
DOI: 10.1109/TNANO.2006.874041     Document Type: Conference Paper

References (8)

1. J. Zhu, Y. Zheng, and G. Prinz, "Ultrahigh density vertical magnetoresistive random access memory (invited)," J. Appl. Phys., vol. 87, pp. 6668-6673, 2000.
2. S. P. Li, D. Peyrade, M. Natali, A. Lebib, Y. Chen, U. Ebels, L. D. Buda, and K. Ounadjela, "Flux closure structures in cobalrt rings," Phys. Rev. Lett., vol. 86, no. 6, pp. 1102-1105, 2001.
3. J. Rothman, M. Klaui, L. Lopez-Diaz, C. A. F. Vaz, A. Bleloch, J. A. C. Bland, Z. Cui, and R. Speaks, "Observation of a bi-domain state and nucleation free switching in mesoscopic ring magnets," Phys. Rev. Lett., vol. 86, pp. 1098-1101, 2001.
4. M. Schneider, H. Hoffmann, and J. Zweck, "Magnetic switching of single vortex permalloy elements," Appl. Phys. Lett., vol. 79, pp. 3113-3115, 2001.
5. M. Kläui, C. A. F. Vaz, J. A. C. Bland, W. Wernsdorfer, G. Faini, and E. Cambril, "Domain wall pinning and controlled magnetic switching in narrow ferromagnetic ring structures with notches (invited)," J. Appl. Phys., vol. 93, pp. 7885-7890, 2003.
6. E. Saitoh, M. Kawabata, K. Harii, H. Miyajima, and T. Yamaoka, "Manipulation of vortex circulation in decentered ferromagnetic nanorings," J. Appl. Phys., vol. 95, pp. 1986-1988, 2004.
7. X. Zhu, P. Grütter, V. Metlushko, and B. Ilic, "Control of domain patterns in square shaped nickel rings," J. Appl. Phys., vol. 93, no. 10, pp. 7059-7061, 2003.
8. A. Subramani, D. Geerpuram, V. Baskaran, J. Friedlund, and V. Metlushko, "Precise control of the vortex chirality inmagnetic nano-rings with deliberately introduced asymmetry," Physica C: Super-conductivity, to be published.