Abstract
The evolution of martensitic to austenitic transformation in Ni50Mn37Sb13 has been studied using temperature dependent neutron diffraction, thermal property, and magnetization studies. Differential scanning calorimetric studies reveal a martensitic transformation TM around 291 K. the magnetization data yield a ferromagnetic ordering temperature of 329 K in the austenitic phase and 230 K in the martensitic phase. the analysis of the powder neutron diffraction data in the temperature range of 325-12 K indicates a structural transition from a high temperature cubic L21 type structure to an orthorhombic structure. at 270 K, both cubic and orthorhombic phases coexist. Anisotropic unit cell changes are observed at the martensitic transformation: The unit cell expands by about 1.5 along the a axis, by about 2.5 along the c axis, and compresses by about 4.28 along the b axis. Both cubic and orthorhombic phases show commensurate collinear ferromagnetic ordering with a magnetic moment of ∼3.67 B/Mn in Mn (2a and 2f) sites. © 2011 American Institute of Physics.
Recommended Citation
N. V. Rama Rao et al., "Neutron Diffraction Studies on the Heusler Alloy Ni50Mn 37Sb13," Journal of Applied Physics, vol. 109, no. 7, article no. 07A907, American Institute of Physics, Apr 2011.
The definitive version is available at https://doi.org/10.1063/1.3540658
Department(s)
Physics
Publication Status
Available Access
International Standard Serial Number (ISSN)
0021-8979
Document Type
Article - Conference proceedings
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2024 American Institute of Physics, All rights reserved.
Publication Date
01 Apr 2011
