Dynamic susceptibility study on the skyrmion phase stability of Fe0.7Co0.3Si
Journal
Journal of Applied Physics
Journal Volume
117
Journal Issue
123903
Pages
123903-1 - 123903-5
Date Issued
2015
Author(s)
Abstract
The AC susceptibilities of Fe1?xCoxSi (0.1???x???0.7) alloys were measured and compared with that of MnSi. The range of skyrmion phase in the H-T phase space was enlarged and moved to higher temperatures when approximately 1/3 of the Fe was substituted with Co. Comparing with MnSi, the skyrmion phase of Fe0.7Co0.3Si was found thermodynamically more stable under a much lower and narrower critical field near 280?��?50?Oe. The stability range in the H-T phase space and the free energy reduction �GE (as a function of the applied magnetic field) for both the Fe0.7Co0.3Si and MnSi were compared.
SDGs
Publisher
American Institute of Physics Inc.
Type
journal article