Počet záznamů: 1

Magnetization switching in ferromagnetic microwires

  1. 1.
    0365720 - FZU-D 2012 RIV US eng J - Článek v odborném periodiku
    Chizhik, A. - Zablotskyy, Vitaliy A. - Stupakiewicz, A. - Gómez-Polo, C. - Maziewski, A. - Zhukov, A. - Gonzalez, J. - Blanco, J. M.
    Magnetization switching in ferromagnetic microwires.
    Physical Review. B. Roč. 82, č. 21 (2010), "212401-1"-"212401-4" ISSN 1098-0121
    Výzkumný záměr: CEZ:AV0Z10100522
    Klíčová slova: magnetic microwire * magnetic anisotropy * domain structure
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 3.772, rok: 2010

    Magnetization states of amorphous soft ferromagnetic microwires are studied by experiment and theoretically. It is shown that in low applied axial fields, on increasing the circular magnetic field produced by current, the initial homogeneous circular magnetization distribution evolves in three sequential steps: (i) the appearance of a helical magnetization state, (ii) a jump to the helical state with opposite chirality, and (iii) a gradual rotation of magnetization toward the new circular state. An applied, large-enough axial field stabilizes the axial magnetization states, making these transitions continuous and shifting the magnetic hysteresis loops. The origin of these successive magnetization reorientations and switching is explained in the frameworks of the proposed model.
    Trvalý link: http://hdl.handle.net/11104/0200894