Browsing Physics by Subject "Magnetization switching"

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  • Magnetic noise in MgO-based magnetic tunnel junction rings 

    COEY, JOHN; FENG, JIA-FENG; DIAO, ZHU (2010)
    Magnetization switching is investigated in ring-shaped MgO-based magnetic tunnel junctions with 168% tunneling magnetoresistance. Besides the forward and reverse onion states, two vortex states and several metastable ...

  • Ultrafast Double Pulse All-Optical Reswitching of a Ferrimagnet 

    Coey, John; Stamenov, Plamen; Rode, Karsten; Atcheson, Gwenael (2021)
    All-optical reswitching has been investigated in the half-metallic Heusler ferrimagnet Mn2Ru0.9Ga, where Mn atoms occupy two inequivalent sites in the XA-type structure. The effect of a second 200 fs, 800 nm laser pulse ...