@article{64c461c95448482fac2bbaaf0567eb7f,
title = "Observation of the intrinsic pinning of a magnetic domain wall in a ferromagnetic nanowire",
abstract = "The spin transfer torque is essential for electrical magnetization switching. When a magnetic domain wall is driven by an electric current through an adiabatic spin torque, the theory predicts a threshold current even for a perfect wire without any extrinsic pinning. The experimental confirmation of this -intrinsic pinningg-however, has long been missing. Here, we give evidence that this intrinsic pinning determines the threshold, and thus that the adiabatic spin torque dominates the domain wall motion in a perpendicularly magnetized Co/Ni nanowire. The intrinsic nature manifests itself both in the field-independent threshold current and in the presence of its minimum on tuning the wire width. The demonstrated domain wall motion purely due to the adiabatic spin torque will serve to achieve robust operation and low energy consumption in spintronic devices.",
author = "T. Koyama and D. Chiba and K. Ueda and K. Kondou and H. Tanigawa and S. Fukami and T. Suzuki and N. Ohshima and N. Ishiwata and Y. Nakatani and K. Kobayashi and T. Ono",
note = "Funding Information: We acknowledge helpful comments from Russel White. This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under NASA contract 1407. This work was supported in part through contract 1256790 issued by JPL/Caltech. The research of L. H. and N. C. was supported in part by NASA grants NAG5-9670, NAG5-13210, and NAG5-10545 and grant AR-09524.01-A from the Space Telescope Science Institute. P. D. acknowledges grants from Papiit/UNAM and CONACyT, M{\'e}xico. Support for this work was also provided by NASA through contract 1257184 issued by JPL/Caltech and through the Spitzer Fellowship Program under award 011 808-001. Funding Information: 9 The IRS was a collaborative venture between Cornell University and Ball Aerospace Corporation funded by NASA through the Jet Propulsion Laboratory and the Ames Research Center.",
year = "2011",
month = mar,
doi = "10.1038/nmat2961",
language = "English",
volume = "10",
pages = "194--197",
journal = "Nature Materials",
issn = "1476-1122",
publisher = "Nature Publishing Group",
number = "3",
}
