Effect of chemical and external hydrostatic pressure on magnetic and magnetocaloric properties of Pt doped Ni2MnGa shape memory Heusler alloys

• The magnetic and magnetocaloric property is investigated for Pt doped Ni2− x Pt x MnGa (x = 0.2, 0.3 and 1.0) alloys at ambient pressure. • The pressure also induces the AFM/FM interaction at low temperature for x = 0.2 alloy, where previously not observed in Ni-Mn based alloys under pressure. • T...
Ausführliche Beschreibung

• The magnetic and magnetocaloric property is investigated for Pt doped Ni2− x Pt x MnGa (x = 0.2, 0.3 and 1.0) alloys at ambient pressure. • The pressure also induces the AFM/FM interaction at low temperature for x = 0.2 alloy, where previously not observed in Ni-Mn based alloys under pressure. • The metamagnetic transition and crossover of magnetization are suppressed for x = 1.0 alloy. • The application of chemical and hydrostatic pressure increases the TM and decreases ΔSM . Ausführliche Beschreibung