Martensitic transition assisted modification of the antiferromagnetic ordering in Ge-site doped MnNiGe alloys

Abstract

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Controlling phase transitions in MnNiGe using thermal quenching and hydrostatic pressure

“…Previous reports indicate that the magnetic transitions and martensitic structural transitions in MnNiGe can be controlled through substitution at the Mn [28][29][30][31][32][33][34][35][36][37][38][39], Ni [27,33,37,[40][41][42][43][44][45], or Ge [46][47][48] sites. Alternatively, stoichiometry modification [49], pressure application [24,38,44], or rapid solidification [50] can also affect the structural and magnetic phase transitions considerably without introducing other elements or even without modifying the composition.…”

The Effect of Hydrostatic Pressure on the Martensitic Transformation and Magnetocaloric Effect of MnNi0.88GeV0.12 Alloy

“…[ 23 ] On the other hand, the Ge site‐doped alloys undergo the transformation from PM austenite to commensurate AFM austenite and then to helically modulated incommensurate AFM martensite during cooling at room temperature. [ 24 ] In addition to doping this chemical modification, there are changes in physical pressure [ 25,26 ] and a sample form (from bulk to ribbon) [ 27,28 ] can achieve this purpose.…”