Abstract
Systematic study on magnetic properties of Fe-nanowires fabricated by electrochemical deposition is performed by micromagnetic simulation,which reveals that all nanowires show magnetic anisotropy,and the coercivity dependents on the diameter with a relationship of inverse square ratio.With fixed diameter,it increases as the length increases,stopping at a platform.The hysteresiss loop,static magnetic configuration and reversal mechanism all vary with changing diameter and length of the wires.Explicit explanation is presented based on the details of the magnetization process.Nanowires with diameter of 5nm,which have not been successfully acquired by experiments all show uniform reverse mechanism in the simulation.Even more intriguing magnetic behaviors emerge when the shape of the wires becomes more particle-like.
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