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0–
 π
 transition induced by the barrier strength in spin superconductor Josephson junctions

The Andreev-like levels and the free energy of the spin superconductor/insulator/spin superconductor junction are obtained by using the Bogoliubov–de Gennes equation. The phase dependence of the spin supercurrents exhibits a 0–π transition by changing the barrier strength. The dependences of the critical current on the barrier strength and the temperature are also presented.