Phase diagram, ferromagnetic martensitic transformation and magnetoresponsive properties of Fe-doped MnCoGe alloys

Abstract

The crystal structure and magnetoresponsive properties of Fe-doped MnCoGe alloys have been investigated using x-ray diffraction (XRD) and magnetic measurements. By alloying the Fe-containing isostructure compounds into MnCoGe, a magnetostructural transition from paramagnetic austenite to ferromagnetic martensite with large magnetization difference can be realized in a temperature window between the Curie temperatures of the austenite and martensite, resulting in magnetic-field-induced martensitic transformations and large magnetic-entropy changes. A structural and magnetic phase diagram of Fe-doped MnCoGe alloys has been proposed.

13 pages, 5 figures, submitted to JMMM

References in corpus (2)

• Vacancy-tuned paramagnetic/ferromagnetic martensitic transformation in Mn-poor Mn_{1-x}CoGe alloys
• Phase diagram and magnetocaloric effect of CoMnGe_{1-x}Sn_{x} alloys

Cited by in corpus (4)

• Giant magnetocaloric effect in isostructural MnNiGe-CoNiGe system by establishing a Curie-temperature window
• Structural transitions, magnetic properties, and electronic structures of Co(Fe)-doped MnNiSi compounds
• Structural and magnetic properties of MnCo1-xFexSi alloys
• Magnetic hourglass fermions: from exhaustive symmetry conditions to high-throughput materials predictions