Dynamically tunable operating temperature range of Ni-Co-Mn-Sn magnetic shape memory alloys via pressure modulation

•A concept is introduced to increase and dynamically tune the operating temperatures in Ni-Co-Mn-Sn FSMAs via pressure.•The effect of pressure on martensitic transformation and magnetic properties of Ni-Co-Mn-Sn are systematically investigated.•The pressure (0–3 GPa) dynamically tunes the operating temperature range (from 198 K to 262 K) of Ni14Co2Mn13Sn3.•The effects of pressure on the magnetic properties and the martensitic transformation are discussed on the electronic structure.