5 papers
Effect of Indium doping on structural and thermoelec-tric properties of SnTe
Diptasikha Das, A. Jana, S. Mahakal +4
The solid state reaction method is employed to synthesize Sn1-xInxTe samples. Power Factors of synthesized samples are estimated from resistivity and thermopower data. Modification…
Favorable half-Heusler structure of synthesized TiCoSb alloy: a theoretical and experimental study
Pallabi Sardar, Suman Mahaka, Soumyadipta Pal +5
The most favorable structure of the synthesized TiCoSb half-Heusler alloy is explored theoretically and experimentally, and the best structure for thermoelectric conversion is repo…
Anomalous Power Factor Enhancement and Local Structural Transition in Ni-Doped TiCoSb
Suman Mahakal, Pallabi Sardar, Diptasikha Das +6
We report a significant enhancement (~269%) in the power factor (PF) and a local structural transition in Ni-doped TiCoSb samples (TiCo_{1-x}Ni_xSb, (x= 0.0, 0.01, 0.02, 0.03, 0.04…
Drastic modification in thermal conductivity of TiCoSb Half-Heusler alloy: Phonon engineering by lattice softening and ionic polarization
Suman Mahakal, Avijit Jana, Diptasikha Das +5
A drastic variation (~47%) in thermal conductivity (\k{appa}) for synthesized samples (TiCoSb1+x, x=0.0, 0.01, 0.02, 0.03, 0.04, and 0.06) is observed. The lowest \k{appa} is repor…
Meta-GGA dielectric-dependent and range-separated screened hybrid functional for reliable prediction of material properties
Subrata Jana, Abhishek Bhattacharjee, Suman Mahakal +2
We propose a range-separated hybrid exchange-correlation functional to calculate solid-state material properties. The functional mixes Hartree-Fock exchange with the semilocal exch…