38 citations · 137 across the 11 of their papers we have counts for
10 papers
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…
Transport phenomena of TiCoSb: Defects induced modification in structure and density of states
S. Mahakal, Diptasikha Das, Pintu Singha +5
TiCoSb1+x (x=0.0, 0.01, 0.02, 0.03, 0.04, 0.06) samples have been synthesized, employing solid state reaction method followed by arc menting. Theoretical calculations, using Densit…
Sb concentration dependent Structural and Transport properties of Polycrystalline (Bi1-xSbx)2Te3 Mixed crystal
K. Malik, S. Mahakal, Diptasikha Das +3
(Bi1-xSbx)2Te3 (x=0.60, 0.65, 0.68, 0.70, 0.75 and 0.80) mixed crystals have been synthesized by solid state reaction. In depth structural, thermal, transport and electronic proper…
Hydrostatic pressure tuned magneto-structural transition and occurrence of pressure induced exchange bias effect in MnFeNiGe alloy
P. Dutta, S. Pramanick, D. Das +1
Magnetic and magneto-functional behavior of a Fe-doped MnNiGe alloy with nominal composition MnFeNiGe have been investigated in ambient as well as in high pressur…
The effect of quenching from different temperatures on Bi 0.88 Sb 0.12 alloy
K. Malik, Diptasikha Das, S. K. Neogi +4
Structural, thermal, resistive and magnetic properties of melt quenched Bi 0.88 Sb 0.12 alloys are reported. The samples are heated at three different temperatures, followed by rap…
Defect induced structural and thermoelectric properties of Sb2Te3 alloy
Diptasikha Das, K. Malik, A. K. Deb +3
Structural and thermoelectric properties of metallic and semiconducting Sb2Te3 are reported. X-Ray diffraction and Raman spectroscopy studies reveal that semiconducting sample have…
Spin glass like ground state and observation of exchange bias in Mn_{0.8}Fe_{0.2}NiGe alloy
P. Dutta, S. Pramanick, D. Venkateshwarlu +4
The ground-state magnetic properties of hexagonal equiatomic alloy of nominal composition Mn_{0.8}Fe_{0.2}NiGe were investigated through dc magnetization and heat capacity measurem…
Magnetoresistive property study of direct and indirect band gap thermoelectric Bi-Sb alloys
Diptasikha Das, K. Malik, S. Bandyopadhyay +3
We report magnetoresistive properties of direct and indirect band gap Bismuth-Antimony (Bi-Sb) alloys. Band gap increases with magnetic field. Large positive magnetoresistance (MR)…
Temperature-dependent structural property and power factor of n type thermoelectric Bi0.90Sb0.10 and Bi0.86Sb0.14 alloys
K. Malik, Diptasikha Das, S. Bandyopadhyay +4
Thermal variation of structural property, linear thermal expansion coefficient, resistivity, thermopower and power factor of polycrystalline Bi1-xSbx (x=0.10, 0.14) samples are rep…
Sb concentration dependent structural and resistive properties of polycrystalline Bi-Sb alloys
K. Malik, Diptasikha Das, D. Mondal +4
Polycrystalline Bi-Sb alloys have been synthesized over a wide range of antimony concentration (8 at% to 20 at%) by solid state reaction method. In depth structural analysis using…