59 citations · 278 across the 22 of their papers we have counts for
24 papers
Magneto-transport and electronic structure studies of ternary antimonides, LaSb ( = Cu, Ag)
Himanshu Pant, Neeraj Bhatt, Deepali Sharma +7
We investigate Sb square net-based Dirac semimetallic ternary antimonides LaSb ( = Cu, Ag) using magnetotransport and photoelectron spectroscopic studies, complemented by…
Lattice effects on the physical properties of half doped perovskite ruthenates
Jaskirat Brar, Saurabh Singh, Kentaro Kuga +4
We investigate the unusual phase transitions in SrRuO and SrCaRuCrO (x=0,0.05 and 0.1) employing x-ray diffraction, resistivity, magnetic…
Tuning the structural, electronic and magneto-transport properties of spin-orbit Mott insulator Sr2IrO4
Priyamedha Sharma, Saurabh Singh, Kentaro Kuga +2
We investigate the tunability of the structural, electronic and magneto transport properties of polycrystalline Sr2IrO4 sample. The extent of bifurcation of the magnetisation curve…
Synergetic enhancement of power factor and suppression of lattice thermal conductivity via electronic structure modification and nanostructuring on Ni and B co-doped p-type Si-Ge alloy
Muthusamy Omprakash, Saurabh Singh, Keisuke Hirata +7
For simultaneously achieving the high-power factor and low lattice thermal conductivity of Si-Ge based thermoelectric materials, we employed, in this study, constructively modifyin…
Unravelling the phonon scattering mechanism in Half-Heusler alloys ZrCo1-xIrxSb (x = 0, 0.1, and 0.25)
Kavita Yadav, Saurabh Singh, Omprakash Muthuswamy +2
Insight about the scattering mechanisms responsible for reduction in the lattice thermal conductivity (\k{appa}L) in Half-Heusler alloys (HHA) is imperative. In this context, we ha…
Capacitor Type Thin-Film Heat Flow Switching Device
Keisuke Hirata, Takuya Matsunaga, Saurabh Singh +2
We developed a capacitor type heat flow switching device, in which electron thermal conductivity of the electrodes is actively controlled through the carrier concentration varied b…
Selective Enhancement in Phonon Scattering leads to High Thermoelectric Figure of Merit in ZnO -- Graphene Oxide Core-shell Nanohybrids
Soumya Biswas, Saurabh Singh, Shubham Singh +5
ZnO is a promising candidate as an environment friendly thermoelectric (TE) material. However, the poor TE figure of merit (zT) needs to be addressed to achieve significant TE effi…
Thermoelectric Properties of GaN with Carrier Concentration Modulation: An Experimental and Theoretical Investigation
Ashish Kumar, Saurabh Singh, Ashutosh Patel +2
The present work investigates the less explored thermoelectric properties of n-type GaN semiconductors by combined both the experimental and computational tools. Seebeck coefficien…
Wide range temperature-dependent (80-630 K) study of Hall effect and the Seebeck coefficient of \b{eta}-Ga2O3 single crystals
Ashish Kumar, Saurabh Singh, Bhera Ram Tak +3
Investigation of Seebeck coefficient in ultra-wide bandgap materials presents a challenge in measurement, nevertheless, it is essential for understanding fundamental transport mech…
Anomalous dependence of thermoelectric parameters on carrier concentration and electronic structure in Mn-substituted Fe2CrAl Heusler alloy
Kavita Yadav, Saurabh Singh, Omprakash Muthuswamy +2
We investigate the high temperature thermoelectric properties of Heusler alloys Fe2-xMnxCrAl (0<x<1). Substitution of 12.5% Mn at Fe-site (x = 0.25) causes a significant increase i…
Thermoelectric properties of Half-Metallic FeMnScGa Using First Principle Calculation
Shubham Singh, Saurabh Singh, Nitinkumar Bijewar +1
Here, we have investigated the thermoelectric properties of FeMnScGa alloy by combined use of full potential linearized augmented plane-wave (FP-LAPW) method and Boltzmann transpor…
Investigation of Thermoelectric properties of Magnetic Insulator FeRuTiSi Using First Principle Calculation
Saurabh Singh, Shubham Singh, Nitinkumar Bijewar +1
In this work, we have investigated the electronic structure and thermoelectric properties of quaternary heusler alloy, FeRuTiSi, using first principle DFT tools implemented in WIEN…
Distinctive Thermoelectric Properties of Supersaturated Si-Ge-P Compounds: Achieving Figure of Merit ZT > 3.6
Swapnil Ghodke, Omprakash Muthusamy, Kevin Delime Codrin +9
The efficiency of energy conversion in thermoelectric generators (TEGs) is directly proportional to electrical conductivity and Seebeck coefficient while inversely to thermal condu…
Apparatus for Seebeck coefficient measurement of wire, thin film and bulk materials in the wide temperature range (80-650K)
Ashish Kumar, Ashutosh Patel, Saurabh Singh +2
A Seebeck coefficient measurement apparatus has been designed and developed, which is very effective for accurate characterization of different type of samples in a wide temperatur…
Effect of nanostructure on thermoelectric properties of LaSrMnO in 300-600 K range
Saurabh Singh, Simant Kumar Srivastav, Ashutosh Patel +2
In oxide materials, nanostructuring effect has been found very promising approach for the enhancement of \textit{figure-of-merit}, \textit{ZT}. In the present work, we have synthes…
Theoretical Study of Thermopower Behavior of LaFeO Compound in High Temperature Region
Saurabh Singh, Shivprasad S. Shastri, Sudhir K. Pandey
The electronic structure and thermopower () behavior of LaFeO compound were investigated by combining the ab-initio electronic structures and Boltzmann transport calculati…
Fabrication of Simple Apparatus for Resistivity Measurement in High Temperature Range 300-620 K
Saurabh Singh, Sudhir K. Pandey
A simple and low cost apparatus has been designed and built to measure the electrical resistivity, (), of metal and semiconductors in 300-620 K temperature range. The present de…
Understanding the High Temperature Thermoelectric Properties of LaBaCoO Compound using DFT+U Method
Saurabh Singh, Devendra Kumar, Sudhir K. Pandey
Normally, understanding the temperature dependent transport properties of strongly correlated electron systems remains challenging task due to complex electronic structure and its…
An important role of temperature dependent scattering time in understanding the high temperature thermoelectric behavior of strongly correlated system: LaBaCoO
Saurabh Singh, Devendra Kumar, Sudhir K. Pandey
In the present work, we have reported the temperature dependent thermopower () behavior of LaBaCoO compound in the temperature range 300-600 K. Using the…
The importance of temperature dependent energy gap in the understanding of high temperature thermoelectric properties
Saurabh Singh, Sudhir K. Pandey
In the present work, we show the importance of temperature dependent energy band gap, E(T), in understanding the high temperature thermoelectric (TE) properties of material b…
Understanding the Thermoelectric Properties of LaCoO Compound
Saurabh Singh, Sudhir K. Pandey
We present the thermoelectric (TE) properties of LaCoO compound in the temperature range 300-600 K. The experimental value of Seebeck coefficient () at 300 K is found to b…
Investigation of the Thermoelectric Properties of ZnVO Compound in High Temperature Region
Saurabh Singh, R. K. Maurya, Sudhir K. Pandey
In the present work, we report the experimental thermopower () data for ZnVO compound in the high temperature range 300-600 K. The value of is found to be …
Fabrication of a simple apparatus for the Seebeck coefficient measurement in high temperature region
Saurabh Singh, Sudhir K. Pandey
A simple apparatus for the measurement of Seebeck coefficient () in the temperature range 300-620 K has been fabricated. Our design is appropriate for the characterization of sa…
Magnetotransport and thermal properties characterization of 55 K superconductor SmFeAsO0.85F0.15
Amit Srivastava, Anand Pal, Saurabh Singh +4
Correlation between structural/microstructural and magneto-thermal transport properties of FeAs-based SmFeAsO and SmFeAsO0.85F0.15 has been studied in detail. The Rietveld analysis…