**4. Conclusion**

In this chapter, we have discussed the exchange bias behaviour in Ni50-xMn37+xSn13 (x = 0, 1, 2, 3, 4) alloys by changing the Ni-Mn concentration. The coexistence of AFM and FM exchange interactions is the reason for the EB phenomenon observed in this alloy series. The temperature strongly influences the HE and HC. The TEB was found to be same for the Mn content more than 37%, even either varying Ni-Mn or Mn/Sn. With the increase of Mn concentration from 37 to 41%, the value of HE increases linearly from 200 to 377 Oe in Ni50-xMn37+xSn13 alloy series.
