Ferromagnetic resonance in Ni-Mn based ferromagnetic Heusler alloys

Ferromagnetic shape memory alloys: Alternatives to Ni–Mn–Ga

This paper intends to review the state-of-the-art in the field of ferromagnetic shape memory alloys different than Ni–Mn–Ga, developed in the ast years. It starts with the effects of additions of different fourth elements to Ni–Mn–Ga and continues with the review of other Heusler (or B2) i-based and Co-based alloy systems, like Ni–Mn–X, Ni–Fe–Ga, Co–Ni–Al and Co–Ni–Ga alloys. Finally, ferromagn...

Martensitic Transformation in Ni-Mn-Sn-Co Heusler Alloys

Thermal and structural austenite to martensite reversible transition was studied in melt spun ribbons of Ni50Mn40Sn5Co5, Ni50Mn37.5Sn7.5Co5 and Ni50Mn35Sn10Co5 (at. %) alloys. Analysis of X-ray diffraction patterns confirms that all alloys have martensitic structure at room temperature: four layered orthorhombic 4O for Ni50Mn40Sn5Co5, four layered orthorhombic 4O and seven-layered monoclinic 14...

Direct evidence of detwinning in polycrystalline Ni-Mn-Ga ferromagnetic shape memory alloys during deformation

Peculiarities of the magnetocaloric properties in Ni-Mn-Sn ferromagnetic shape memory alloys

V. V. Khovaylo,1,2 K. P. Skokov,3,4 O. Gutfleisch,4 H. Miki,5 T. Takagi,5 T. Kanomata,6 V. V. Koledov,7 V. G. Shavrov,7 G. Wang,8 E. Palacios,8 J. Bartolomé,8 and R. Burriel8 1National University of Science and Technology “MISiS,” Moscow 119049, Russia 2Physics Department, Moscow State Mining University, Moscow 119991, Russia 3Faculty of Physics, Tver State University, Tver 170000, Russia 4Inst...

Effects of Annealing on the Martensitic Transformation of Ni-Based Ferromagnetic Shape Memory Heusler Alloys and Nanoparticles

We report on the effects of annealing on the martensitic phase transformation in the Ni-based Heusler system: Mn50Ni40Sn10 and Mn50Ni41Sn9 powder and Co50Ni21Ga32 nanoparticles. For the powdered Mn50Ni40Sn10 and Mn50Ni41Sn9 alloys, structural and magnetic measurements reveal that post-annealing decreases the martensitic transformation temperatures and increases the transition hysteresis. This m...