Enhanced stochasticity of domain wall motion in magnetic racetracks due to dynamic pinning

Nature Communications

Volumn 1, Issue 3, 2010, Pages

  Jiang, Xin ^a   Thomas, Luc ^a   Moriya, Rai ^a   Hayashi, Masamitsu ^a   Bergman, Bastiaan ^a   Rettner, Charles ^a   Parkin, Stuart S P ^a  

^a IBM ALMADEN RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

NANOWIRE;

ARTICLE; ELECTRIC POTENTIAL; ENERGY; MAGNETIC FIELD; MAGNETISM; MOTION; METHODOLOGY; NANOTECHNOLOGY;

MAGNETICS; NANOTECHNOLOGY; NANOWIRES;

EID: 84880295010     PISSN: None     EISSN: 20411723     Source Type: Journal    
DOI: 10.1038/ncomms1024     Document Type: Article

References (20)

1. Allwood, D. A. et al. Magnetic domain-wall logic. Science 309, 1688-1692,doi:10.1126/science.1108813 (2005). (Pubitemid 41285930)
2. Parkin, S. S. P., Hayashi, M. & Th omas, L. Magnetic domain-wall racetrack memory. S cience 3 20, 190-194, doi:10.1126/science.1145799 (2008). (Pubitemid 351521407)
3. Schryer, N. L. & Walker, L. R. Th e motion of 180 ° domain walls in uniform dc magnetic fi elds. J. Appl. Phys. 45, 5406-5421 (1974).
4. Atkinson, D. et al. Magnetic domain-wall dynamics in a submicrometre ferromagnetic structure. Nat. Mater. 2, 85-87 (2003).
5. Ono, T. et al. Propagation of the magnetic domain wall in submicron magnetic wire investigated by using giant magnetoresistance eff ect. J. Appl. Phys. 8 5, 6181-6183 (1999). (Pubitemid 129651073)
6. Beach, G. S. D., Nistor, C., Knutson, C., Tsoi, M. & Erskine, J. L. Dynamics of fi eld-driven domain-wall propagation in ferromagnetic nanowires. Nat. Mater. 4, 741-744 (2005). (Pubitemid 41398200)
7. Hayashi, M. e t al. Infl uence of current on fi eld-driven domain wall motion in permalloy nanowires from time resolved measurements of anisotropic magnetoresistance. P hys. Rev. Lett. 9 6, 197207 (2006).
8. Hayashi, M., Th omas, L., Rettner, C., Moriya, R. & Parkin, S. S. P. Direct observation of the coherent precession of magnetic domain walls propagating along permalloy nanowires. Nat. Phys. 3, 21-25 (2007).
9. Kondou, K., Ohshima, N., Kasai, S., Nakatani, Y. & Ono, T. Single shot detection of the magnetic domain wall motion by using tunnel magnetoresistance eff ect. A ppl. Phys. Exp. 1, 061302 (2008).
10. Tanigawa, H. et al. Dynamical pinning of a domain wall in a magnetic nanowire induced by walker breakdown. Phys. Rev. Lett. 101, 207203-207204 (2008).
11. Ono, T. et al. Propagation of a magnetic domain wall in a submicrometer magnetic wire. S cience 284, 468-470 (1999). (Pubitemid 29289615)
12. Grollier, J. et al. Switching a spin valve back and forth by current-induced domain wall motion. Appl. Phys. Lett. 83, 509-511 (2003).
13. Thomas, L., Hayashi, M., Jiang, X., Rettner, C. & Parkin, S. S. P. Perturbation of spin-valve nanowire reference layers during domain wall motion induced by nanosecond-long current pulses. Appl. Phys. Lett. 92, 112504-112503 (2008).
14. Hayashi, M. et al. Dependence of current and fi eld driven depinning of domain walls on their structure and chirality in permalloy nanowires. Phys. Rev. Lett. 97, 207205 (2006).
15. Thiaville, A. & Nakatani, Y. in Spin Dynamics in Confi ned Magnetic Structures III (eds Hillebrands, B & Th iaville, A) (Springer, 2006).
16. Malozemoff, A. P. & Slonczewski, J. C. M agnetic Domain Walls in Bubble Material (Academic, 1979).
17. Ahn, S. - M., Moon, K. - W., Kim, D. - H. & Choe, S. - B. D etection of the static and kinetic pinning of domain walls in ferromagnetic nanowires. Appl. Phys. Lett. 9 5, 152506-152503, doi:10.1063/1.3248220 (2009).
18. Thomas, L. e t al. Oscillatory dependence of current-driven magnetic domain wall motion on current pulse length. Nature 4 43, 197-200 (2006). (Pubitemid 44387605)
19. Nakatani, Y., Th iaville, A. & Miltat, J. Head-to-head domain walls in soft nanostrips: a refi ned phase diagram. J Magn Magn Mater 2 90-291, 750-753 (2005). (Pubitemid 40377255)
20. Thomas, L. e t al. Observation of injection and pinning of domain walls in magnetic nanowires using photoemission electron microscopy. Appl. Phys. Lett. 87, 262501 (2005).