Optical characterization of all-magnetic not gate operation in vortex rings

IEEE Transactions on Magnetics

Volumn 45, Issue 12, 2009, Pages 5326-5332

  Bowden, Samuel R ^a   Gibson, U J ^a  

^a DARTMOUTH COLLEGE   (United States)

Author keywords

Magnetic logic devices; Magnetooptic Kerr effect; Optical films; Thin film devices

Indexed keywords

FOCUSED BEAMS; LOGICAL STATE; MAGNETIZATION STATE; MAGNETO-OPTIC KERR EFFECT; NOT GATE; OPTICAL CHARACTERIZATION; PERMALLOY RINGS; SHAPE ANISOTROPY; SMALL REGION; VORTEX RINGS;

KERR MAGNETOOPTICAL EFFECT; MAGNETIC FIELD EFFECTS; MAGNETIC LOGIC DEVICES; MAGNETIC THIN FILM DEVICES; OPTICAL COATINGS; OPTICAL FILMS; THIN FILMS;

OPTICAL KERR EFFECT;

EID: 70450231672     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2009.2026573     Document Type: Article

References (30)

1. R. P. Cowburn and M. E. Welland, "Room temperature magnetic quantum cellular automata," Science, vol.287, pp. 1466-1468, Feb. 2000.
2. G. Csaba, A. Imre, G. H. Bemstein, W. Porod, and V. Metlushko, "Nanocomputing by field-coupled nanomagnets," IEEE Trans. Nanotechnol., vol.1, pp. 209-213, Dec. 2002.
3. A. Imre, L. Zhou, A. Orlov, G. Csaba, G. H. Bernstein, W. Porod, and V. Metlushko, "Application of mesoscopic magnetic rings for logic devices," in 4th IEEE Conf. Nanotechnology, Los Alamitos, CA, Aug. 2004, pp. 137-139.
4. J. G. Zhu, Y. F. Zheng, and G. A. Prinz, "Ultrahigh density vertical magnetoresistive random access memory," J. Appl. Phys., vol.87, pp. 6668-6673, May 2000.
5. Y. Luo and V. Misra, "Fabrication of large area nano-rings for MRAM application," Microelectron. Eng., vol.85, pp. 1555-1560, Jul. 2008.
6. Z. Cui, J. Rothman, M. Kläui, L. Lopez-Diaz, C. A. F. Vaz, and J. A. C. Bland, "Fabrication of magnetic rings for high density memory devices," Microelectron. Eng., vol.61-62, pp. 577-583, Jul. 2002.
7. M. Kläui, C. A. F. Vaz, J. A. C. Bland, W.Wernsdorfer, G. Faini, and E. Cambril, "Controlled magnetic switching in single narrowrings probed by magnetoresistance measurements," Appl. Phys. Lett., vol.81, pp. 108-110, July 2002.
8. A. Imre, G. Csaba, L. Ji, A. Orlov, G. H. Bernstein, and W. Porod, "Majority logic gate for magnetic quantum-dot cellular automata," Science, vol.311, pp. 205-208, Jan. 2006.
9. U. Welp, V. K. Vlasko-Vlasov, J. M. Miller, N. J. Zaluzec, V. Metlushko, and B. Ilic, "Magnetization of reversal in arrays of Co rings," Phys. Rev. B, vol.68, p. 054408, Aug. 2003.
10. U.Welp, V. K. Vlasko-Vlasov, G. W. Crabtree, J. Hiller,N. Zaluzec, V. Metlushko, and B. Ilic, "Magnetization reversal in arrays of individual and coupled Co-rings," J. Appl. Phys., vol.93, pp. 7056-7058, May 2003.
11. S. R. Bowden, K. K. L. Ahmed, and U. J. Gibson, "Longitudinal magneto-optic Kerr effect detection of latching vortex magnetization chirality in individual mesoscale rings," Appl. Phys. Lett., vol.91, p. 232505, Dec. 2007.
12. M. Schneider, H. Hoffmann, and J. Zweck, "Magnetic switching of single vortex permalloy elements," Appl. Phys. Lett., vol.79, pp. 3113-3115, Nov. 2001.
13. R. Nakatani, T. Yoshida, Y. Endo, Y. Kawamura, M. Yamamoto, T. Takenaga, S. Aya, T. Kuroiwa, S. Beysen, and H. Kobayashi, "Magnetization chirality due to asymmetrical structure in Ni-Fe annular dots for high-density memory cells," J. Appl. Phys., vol.95, pp. 6714-6716, Jun. 2004.
14. C. A. Ross, F. J. Castaño, D. Morecroft, W. Jung, H. I. Smith, T. A. Moore, T. J. Hayward, J. A. C. Bland, T. J. Bromwich, and A. K. Petford- Long, "Mesoscopic thin-film magnetic rings," J. Appl. Phys., vol.99, pp. 08S501-, Apr. 2006.
15. L. J. Heyderman, M. Kläui, B. Nöhammer, C. A. F. Vaz, J. A. C. Bland, and C. David, "Fabrication of nanoscale magnetic ring structures and devices," Microelectron. Eng., vol.73-74, pp. 780-784, Jun. 2004.
16. J. Podbielski, F. Giesen, M. Berginski, N. Hoyer, and D. Grundler, "Spin configurations in nanostructured magnetic rings: From DC transport to GHz spectroscopy," Superlattices Microstruct., vol.37, pp. 341-348, May 2005.
17. M. Rahm, J. Stahl, W. Wegschneider, and D. Weiss, "Multistable switching due to magnetic vortices pinned at artificial pinning sites," Appl. Phys. Lett., vol.85, pp. 1553-1555, Aug. 2004.
18. H. Rolff, W. Pfützner, Ch. Heyn, and D. Grundler, "Hall magnetometry on a ferromagnetic nanoring," J. Magn. Magn. Mater., vol.272-276, pp. 1623-1624, May 2004.
19. T. J. Bromwich, A. K. Petford-Long, F. J. Castaño, and C. A. Ross, "Lorentz microscopy of elliptical magnetic rings," J. Appl. Phys., vol.99, p. 08H304, Apr. 2006.
20. P. R. Cantwell, U. J. Gibson, D. A. Allwood, and H. A. M. Macleod, "Optical coatings for improved contrast in longitudinal magneto-optic Kerr effect measurements," J. Appl. Phys., vol.100, p. 093910, Nov. 2006.
21. D. A. Allwood, G. Xiong, M. D. Cooke, and R. P. Cowburn, "Magnetooptic Kerr effect analysis of magnetic nanostructures," J. Phys. D, vol.36, pp. 2175-2182, Sep. 2003.
22. K. Nakamura, T. Asaka, S. Asari, Y. Ota, and A. Itoh, "Enhancement of Kerr rotation with amorphous Si film," IEEE Trans. Magn., vol.MAG-21, no.5, pp. 1654-1656, Sep. 1985.
23. J. Kranz and W. Drechsel, ̈ber die beobachtung von weißschen bereichen in polykristallinem material durch die vergrößerte magneto-optische Kerrdrehung," Z. Phys., vol. 150, pp. 632-639, Oct. 1958.
24. P. H. Lissberger, "Kerr magneto-optic effect in nickel-iron films. II. Theoretical," J. Opt. Soc. Amer. A, vol.51, pp. 957-966, Sep. 1961.
25. L. F. Holiday and U. J. Gibson, "Improved longitudinal magneto-optic Kerr effect signal contrast from nanomagnets with dielectric coatings," Opt. Express, vol.14, pp. 13007-13013, Dec. 2006.
26. U. J. Gibson, L. F. Holiday, D. A. Allwood, S. Basu, and P. W. Fry, "Enhanced longitudinal magnetooptic Kerr effect contrast in nanomagnetic structures," IEEE Trans. Magn., vol.43, no.6, pp. 2740-2742, Jun. 2007.
27. N. Qureshi, H. Schmidt, and A. R. Hawkins, "Cavity enhancement of the magneto-optic Kerr effect for optical studies on magnetic nanostructures," Appl. Phys. Lett., vol.85, pp. 431-433, Jul. 2004.
28. M. Kläui, C. A. F. Vaz, L. J. Heyderman, U. Rüdiger, and J. A. C. Bland, "Spin switching phase diagram of mesoscopic ring magnets," J. Magn. Magn. Mater., vol.290-291, pp. 61-67, Apr. 2004.
29. M. Kläui, C. A. F. Vaz, J. A. C. Bland, L. J. Heyderman, F. Nolting, A. Pavlovska, E. Bauer, S. Cherifi, S. Heun, and A. Locatelli, "Head-tohead domain-wall phase diagram in mesoscopic ring magnets," Appl. Phys. Lett., vol.85, pp. 5637-5639, Dec. 2004.
30. M. Kläui, C. A. F. Vaz, J. Rothman, J. A. C. Bland, W.Wernsdorfer, G. Faini, and E. Cambril, "Domain wall pinning in narrow ferromagnetic ring structures probed by magnetoresistance measurements," Phys. Rev. Lett., vol.90, p. 097202, Mar. 2003.