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Effect of chemical substitution on the skyrmion phase in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Cu</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>OSeO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>
Magnetic skyrmions have been the focus of intense research due to their unique qualities which result from their topological protections. Previous work on ${\mathrm{Cu}}_{2}{\mathrm{OSeO}}_{3}$, the only known insulating multiferroic skyrmion material, has shown that chemical substitution alters the skyrmion phase. We chemically substitute Zn, Ag, and S into powdered ${\mathrm{Cu}}_{2}{\mathrm{OSeO}}_{3}$ …