Micromagnetic Study of Influence of Gd Content on Current-Induced Domain Wall Motion in a Ferrimagnetic Nanowire

作者：Kajitani Jo^*; Komine Takashi; Sugita Ryuji

来源：IEICE - Transactions on Electronics, 2013, E96C(12): 1515-1519.

DOI：10.1587/transele.E96.C.1515

• current-induced domain wall motion
• ferrimagnetic nanowires
• rare-earth metal composition
• intrinsic critical current density

In this study, the influence of Gd composition on current-induced domain wall motion in a Gd-Co ferrimagnetic nanowire was theoretically investigated with taking into account of composition dependence of magnetic properties. As a result, the intrinsic critical density to move domain wall significantly reduces near the compensation composition, which is achieved to be less than 10(5) A/cm(2). Moreover, the intrinsic critical current density also significantly reduces near a certain Gd composition where the domain wall energies of Bloch and Neel walls are almost the same.

• 出版日期2013-12