47 citations · 219 across the 20 of their papers we have counts for
21 papers
Symmetry-Adapted Physical and Vibrational Properties of Ferroelectric Perovskite Oxides: Application to PbZrxTi1-xO3
Sumit Ranjan Maity, Brajesh Tiwari
Crystal symmetry governs macroscopic physical properties and lattice dynamics in functional materials. We present a systematic application of tensor analysis and group theory to de…
Emergence of polar monoclinic phase in heterohalogen substituted CsGeX
Sourabh Vairat, Balachandra G. Hegde, Brajesh Tiwari +1
The occurrence of ferroelectricity in inorganic germanium-based halide perovskites has provided an alternative to oxide counterparts. Using first-principles methods, we have studie…
Impact of Cr-O hyrbidization in ACrO3 (A=La, Y): A Theoretical Investigation
Jeel Swami, Ambesh Dixit, Brajesh Tiwari
Electronic properties of spin polarized antiferromagnetic ACrO3 (A = La, Y) are explored with Hubbard Model using Density Functional Theory (DFT). These two isostructural systems a…
Magnetic Entropy in a Non-Collinear Weak Ferromagnetic YCrO3
Brajesh Tiwari, Ambesh Dixit, M. S. Ramachandra Rao
We carried out temperature and field dependent magnetic measurements to understand the evolution of magnetic non-collinearity near antiferromagnetic phase in conjunction with the e…
Anomalous magnetic behavior and complex magnetic structure of proximate LaCrO3 LaFeO3 system
Brajesh Tiwari, Ambesh Dixit, M. S. Ramachandra Rao
We investigated complex magnetic properties of multifunctional LaCrO3-LaFeO3 system. The magnetic measurements substantiate the presence of competing complex magnetic ordering agai…
High Field (up to 140kOe) Angle Dependent Magneto Transport of Bi2Te3 Single Crystals
Rabia Sultana, P. K. Maheshwari, Brajesh Tiwari +1
We report the angle dependent high field (up to 140kOe) magneto transport of Bi2Te3 single crystals, a well-known topological insulator. The crystals were grown from melt of consti…
Influence of Ni doping on critical parameters of PdTe superconductor
Reena Goyal, Rajveer Jha, Brajesh Tiwari +2
We report the effect of Ni doping on superconductivity of PdTe. The superconducting parameters like critical temperature (Tc), upper critical field (Hc2) and normalized specific-he…
Impact of Ni doping on critical parameters of PdTe type-II BCS superconductor
Rajveer Jha, Reena Goyal, Brajesh Tiwari +1
We report the impact of Ni doping on superconductivity of PdTe superconductor. The superconducting parameters like critical temperature (Tc), upper critical field (Hc2) and normali…
Specific heat of robust Nb2PdS5 superconductor
Reena Goyal, Brajesh Tiwari, Rajveer Jha +1
We report specific heat under different magnetic fields for recently discovered quasi-one dimensional Nb2PdS5 superconductor. The studied compound is superconducting below 6 K. Nb2…
Superconductivity at 4.4K in PdTe2-chains of a Ta Based Compound
Reena Goyal, Brajesh Tiwari, Rajveer Jha +1
Superconductivity in PdTe2 heavy transition metal based compounds is rapidly developing field in condensed matter physics community. Here, we report superconductivity in a nominal…
PdTe a 4.5K Type II BCS Superconductor
Brajesh Tiwari, Reena Goyal, Rajveer Jha +2
We report on the structure and physical properties of bulk Palladium Tellurium superconductor, which is synthesized via quartz vacuum encapsulation technique at 750 C. The as synth…
Superconductivity at 4K in Pd deficient layered Ta_2Pd_xS_6
Brajesh Tiwari, Babu Baijnath Prasad, Rajveer Jha +2
Here in this short note, we report on the low dimensional 4d and 5d transition metals-chalcogenide based compounds i.e., Ta2PdxS6, showing semiconducting to superconducting transit…
Hydrostatic Pressure Studies on Parent Phase SrFBiS2 of BiS2-based Superconducting Family
Rajveer Jha, Brajesh Tiwari, V. P. S. Awana
In the present work, we measure the temperature dependent electrical resistivity from 300K down to 2K under applied hydrostatic pressure of upto 2.5GPa for SrFBiS2, which is the pa…
Appearance of bulk Superconductivity under Hydrostatic Pressure in Sr0.5RE0.5FBiS2 (RE = Ce, Nd, Pr and Sm) compounds
Rajveer Jha, Brajesh Tiwari, V. P. S. Awana
We report the appearance of superconductivity under hydrostatic pressure (0.35 to 2.5GPa) in Sr0.5RE0.5FBiS2 with RE = Ce, Nd, Pr and Sm. The studied compounds, synthesized by soli…
Magnetotransport studies of FeSe under hydrostatic pressure
Brajesh Tiwari, Rajveer Jha, V. P. S. Awana
The discoveries of iron-based superconductors with relatively high transition temperature are under intense experimental and theoretical investigation. Here we present magnetotrans…
Role of MgO impurity on the superconducting properties of MgB2
Dharmendra Kumar Singh, Brajesh Tiwari, Rajveer Jha +2
We address the effect of MgO impurity on the superconducting properties of MgB2. The synthesis of MgB2 is very crucial because of sensitivity of Mg to oxidation which may lead to M…
Magnetic phases of erbium orthochromite
Brajesh Tiwari, M Krishna Surendra, M. S. Ramachandra Rao
Erbium orthochromite, ErCrO3, is a distorted-perovskite which has antiferromagnetic ground state below 10 K while Cr3+ magnetic moments order at 133 K. The temperature dependence o…
Magnetostructural and magnetocaloric properties of bulk LaCrO3 system
Brajesh Tiwari, A. Dixit, R Naik +2
We studied the magnetic properties of bulk LaCrO3; a GdFeO3-type distorted perovskite, with a predominant antiferromagnetic phase transition at ~ 290 K. The bulk LaCrO3 exhibits in…
Impact of hydrostatic pressure on superconductivity of Sr0.5La0.5FBiS2
Rajveer Jha, Brajesh Tiwari, V. P. S. Awana
We report the impact of hydrostatic pressure (0-1.97GPa) on superconductivity of recently discovered 2K superconductor Sr0.5La0.5FBiS2. Resistivity under pressure measurements are…
Anomalous magnetism of Pr in PrCoAsO
Brajesh Tiwari, Anand Pal, V. P. S. Awana
Detailed magnetization and magneto-transport measurements studies are carried out to unearth the anomalous magnetism of Pr in PrCoAsO compound. The studied PrCoAsO sample is single…
Robust superconductivity with large upper critical field in Nb2PdS5
Rajveer Jha, Brajesh Tiwari, Poonam Rani +2
We report synthesis, structural details and complete superconducting characterization of very recently discovered Nb2PdS5 new superconductor. The synthesized compound is crystalliz…