Magnetic superelasticity and inverse magnetocaloric effect in Ni-Mn-In

نویسندگان

  • Thorsten Krenke
  • Eyüp Duman
  • Mehmet Acet
  • Eberhard F. Wassermann
  • Xavier Moya
  • Lluís Mañosa
  • Antoni Planes
  • Emmanuelle Suard
  • Bachir Ouladdiaf
چکیده

Applying a magnetic field to a ferromagnetic Ni50Mn34In16 alloy in the martensitic state induces a structural phase transition to the austenitic state. This is accompanied by a strain which recovers on removing the magnetic field, giving the system a magnetically superelastic character. A further property of this alloy is that it also shows the inverse magnetocaloric effect. The magnetic superelasticity and the inverse magnetocaloric effect in Ni-Mn-In and their association with the first-order structural transition are studied by magnetization, strain, and neutron-diffraction studies under magnetic field.

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تاریخ انتشار 2007