Magnetic properties of nanowires with ferromagnetic core and antiferromagnetic shell
arXiv:1812.03339 · doi:10.1016/j.jmmm.2018.11.100
Abstract
We present a Monte Carlo study of the magnetic properties of thin cylindrical nanowires composed of a ferromagnetic core and an antiferromagnetic shell implementing a classical spin Hamiltonian. We address systematically the impact of interface exchange coupling on the loop characteristics and the magnetization reversal mechanism. We study the effect of shell polycrystallinity on the characteristic fields of the isothermal hysteresis loop (coercivity, exchange-bias). We demonstrate that coupling to a polycrystalline antiferromagnetic shell increases the critical core diameter for transition from transverse to vortex domain walls.
arXiv comment8 pages, 5 figures, 1 table, JEMS'18. arXiv admin note: text overlap with arXiv:1805.04008
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