Composition and temperature dependence of the thermoelectric power of Ni₂₊ₓMn₁₋ₓGa alloys
Bhobe, P. A. · Monteiro, J. H. · Cascalheira, J. C. · Mendiratta, S. K. · Priolkar, K. R. · Sarode, P. R.
الأصل · EN
The thermoelectric power (TEP) measurements have been carried out to investigate the changes in the electronic structure associated with the intermartensitic and martensitic transitions in Ni₂₊ₓMn₁₋ₓGa (0 ≤ x ≤ 0.19). The samples have been characterized by a.c. magnetic susceptibility measurements. The correlation between the TEP and the microstructural changes sensitive to the increasing Ni content in Ni₂₊ₓMn₁₋ₓGa has been investigated. The changes in the density of states as reflected in the temperature variation of the TEP are consistent with the conclusions drawn from the Jahn-Teller mechanism of lattice distortion.
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