Current-driven periodic domain wall creation in ferromagnetic nanowires Academic Article uri icon

abstract

  • © 2016 American Physical Society. We predict the electrical generation and injection of domain walls into a ferromagnetic nanowire without the need of an assisting magnetic field. Our analytical and numerical results show that above a critical current jc domain walls are injected into the nanowire with a period T∼(j-jc)-1/2. Importantly, domain walls can be produced periodically even in a simple exchange ferromagnet with uniaxial anisotropy, without requiring any standard "twisting" interaction such as Dzyaloshinskii-Moriya or dipole-dipole interactions. We show analytically that this process and the period exponents are universal and do not depend on the peculiarities of the microscopic Hamiltonian. Finally we give a specific proposal for an experimental realization.

published proceedings

  • Physical Review B

altmetric score

  • 0.25

author list (cited authors)

  • Sitte, M., Everschor-Sitte, K., Valet, T., Rodrigues, D. R., Sinova, J., & Abanov, A. r

citation count

  • 13

complete list of authors

  • Sitte, Matthias||Everschor-Sitte, Karin||Valet, Thierry||Rodrigues, Davi R||Sinova, Jairo||Abanov, Ar

publication date

  • August 2016