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Field-Free Switching of Perpendicular Magnetization in an Ultrathin Epitaxial Magnetic Insulator.
Husain, Sajid; Prestes, Nicholas F; Fayet, Olivier; Collin, Sophie; Godel, Florian; Jacquet, Eric; Denneulin, Thibaud; Dunin-Borkowski, Rafal E; Thiaville, André; Bibes, Manuel; Jaffrès, Henri; Reyren, Nicolas; Fert, Albert; George, Jean-Marie.
Afiliación
  • Husain S; Laboratoire Albert Fert CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, 91767 Palaiseau Cedex, France.
  • Prestes NF; Laboratoire Albert Fert CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, 91767 Palaiseau Cedex, France.
  • Fayet O; Laboratoire Albert Fert CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, 91767 Palaiseau Cedex, France.
  • Collin S; Laboratoire Albert Fert CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, 91767 Palaiseau Cedex, France.
  • Godel F; Laboratoire Albert Fert CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, 91767 Palaiseau Cedex, France.
  • Jacquet E; Laboratoire Albert Fert CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, 91767 Palaiseau Cedex, France.
  • Denneulin T; Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich, 52425 Jülich, Germany.
  • Dunin-Borkowski RE; Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich, 52425 Jülich, Germany.
  • Thiaville A; Laboratoire de Physique des Solides, Université Paris-Saclay, CNRS, 91405 Orsay, France.
  • Bibes M; Laboratoire Albert Fert CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, 91767 Palaiseau Cedex, France.
  • Jaffrès H; Laboratoire Albert Fert CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, 91767 Palaiseau Cedex, France.
  • Reyren N; Laboratoire Albert Fert CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, 91767 Palaiseau Cedex, France.
  • Fert A; Laboratoire Albert Fert CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, 91767 Palaiseau Cedex, France.
  • George JM; Laboratoire Albert Fert CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, 91767 Palaiseau Cedex, France.
Nano Lett ; 24(9): 2743-2750, 2024 Mar 06.
Article en En | MEDLINE | ID: mdl-38393986
ABSTRACT
For energy-efficient magnetic memories, switching of perpendicular magnetization by spin-orbit torque (SOT) appears to be a promising solution. This SOT switching requires the assistance of an in-plane magnetic field to break the symmetry. Here, we demonstrate the field-free SOT switching of a perpendicularly magnetized thulium iron garnet (Tm3Fe5O12, TmIG). The polarity of the switching loops, clockwise or counterclockwise, is determined by the direction of the initial current pulses, in contrast with field-assisted switching where the polarity is controlled by the direction of the magnetic field. From Brillouin light scattering, we determined the Dzyaloshinskii-Moriya interaction (DMI) induced by the Pt-TmIG interface. We will discuss the possible origins of field-free switching and the roles of the interfacial DMI and cubic magnetic anisotropy of TmIG. This discussion is substantiated by magnetotransport, Kerr microscopy, and micromagnetic simulations. Our observation of field-free electrical switching of a magnetic insulator is an important milestone for low-power spintronic devices.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Lett Año: 2024 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Lett Año: 2024 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Estados Unidos