Combined giant inverse and normal magnetocaloric effect for room-temperature magnetic cooling

In this Brief Report, we report on the observation of a giant positive (inverse) magnetic entropy change (about 28.60.3em0exJ0.2em0exK^-10.2em0exkg^-1 at 50.3em0exT magnetic field) below 3000.3em0exK and a modest negative (normal) entropy change (about 6.60.3em0exJ0.2em0exK^-10.2em0exkg^-1 at 50.3em0exT) above 3000.3em0exK in a Ni₅₀Mn33.13In13.90 single crystal. This temperature-dependent entropy change may suggest that both the magnetizing and demagnetizing processes can be employed for cooling.