Deterministic multi-level spin orbit torque switching using He+ microscopy patterning

Jinu Kurian; Aleena Joseph; Salia Cherifi-Hertel; Ciaran Fowley; Gregor Hlawacek; Peter Dunne; Michelangelo Romeo; Gwenaël Atcheson; J. M. D. Coey; Bernard Doudin

doi:10.1063/5.0131188

Deterministic multi-level spin orbit torque switching using He+ microscopy patterning

Mesoscale and Nanoscale Physics 2023-02-01 v1 Materials Science Applied Physics

Authors: Jinu Kurian , Aleena Joseph , Salia Cherifi-Hertel , Ciaran Fowley , Gregor Hlawacek , Peter Dunne , Michelangelo Romeo , Gwenaël Atcheson , J. M. D. Coey , Bernard Doudin

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

He $^+$ ion irradiation is used to pattern multiple areas of Pt/Co/W films with different irradiation doses in Hall bars. The resulting perpendicular magnetic anisotropy landscape enables selective multilevel current-induced switching, with full deterministic control of the position and order of the individual switching elements. Key pattern design parameters are specified, opening a way to scalable multilevel switching devices.

Keywords

spintronics spin current magnetic anisotropy

Cite

@article{arxiv.2301.02188,
  title  = {Deterministic multi-level spin orbit torque switching using He+ microscopy patterning},
  author = {Jinu Kurian and Aleena Joseph and Salia Cherifi-Hertel and Ciaran Fowley and Gregor Hlawacek and Peter Dunne and Michelangelo Romeo and Gwenaël Atcheson and J. M. D. Coey and Bernard Doudin},
  journal= {arXiv preprint arXiv:2301.02188},
  year   = {2023}
}

Comments

7 pages, 3 figures

Deterministic multi-level spin orbit torque switching using He+ microscopy patterning

Abstract

Keywords

Cite

Comments

Related papers