Title :
Micromagnetic study on the threshold current density for continuous domain wall motion
Author :
Kim, Woo Jin ; Seo, Soo Man ; Lee, Taek Dong ; Lee, Kyung Jin
Author_Institution :
Korea Adv. Inst. of Sci, Daejeon
Abstract :
Theoretical study by Tatara and Kohno predicted the threshold current density (Jc) above which spin current enables the continuous domain wall motion in the adiabatic limit [1]. We investigated on this point by micromagnetic simulation. It was found out that Jc is proportional to the product of the hard-axis anisotropy and the domain wall width as predicted in [1]. However, Jc was much lower than the predicted value.
Keywords :
current density; magnetic anisotropy; magnetic domain walls; micromagnetics; spin polarised transport; adiabatic limit; continuous domain wall motion; hard-axis anisotropy; micromagnetic study; spin current; threshold current density; Anisotropic magnetoresistance; Current density; Equations; Magnetic anisotropy; Magnetization; Materials science and technology; Micromagnetics; Polarization; Threshold current; Torque; Current-induced domain wall motion; Spin transfer torque; Threshold current density;
Conference_Titel :
Nanotechnology Materials and Devices Conference, 2006. NMDC 2006. IEEE
Conference_Location :
Gyeongju
Print_ISBN :
978-1-4244-0540-4
Electronic_ISBN :
978-1-4244-0541-1
DOI :
10.1109/NMDC.2006.4388784
