Effects of hydrostatic pressure on the magnetism and martensitic transition of NiMnIn mag.pdf

Effects of hydrostatic pressure on the magnetism and martensitic transition of Ni-Mn-In magnetic superelastic alloys Llu´ıs Ma˜nosa, Xavier Moya, Antoni Planes Facultat de F´ısica, Departament d’Estructura i Constituents de la Mat`eria, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona, Catalonia, Spain Oliver Gutfleisch, Julia Lyubina IFW-Dresden. Institute of Metallic Materials. P.O. Box 270116. D-01171 Dresden, Germany 7 0 0 Maria Barrio, Josep-Llu´ıs Tamarit 2 Departament de F´ısica i Enginyeria Nuclear, ETSEIB, Universitat Polit`ecnica de Catalunya, Diagonal 647, 08028-Barcelona, Catalonia, Spain c e D Seda Aksoy, Thorsten Krenke[*], Mehmet Acet Experimentalphysik, Universit¨at Duisburg-Essen, D-47048 Duisburg, Germany 1 (Dated: February 2, 2008) 2 We report magnetization and differential thermal analysis measurements as a function of pressure ] accross the martensitic transition in magnetically superelastic Ni-Mn-In alloys. It is found that the i properties of the martensitic transformation are significantly affected by the application of pressure. c s All transition temperatures shift to higher values with increasing pressure. The largest rate of - temperature shift with pressure has been found for Ni50M