38 citations · 282 across the 24 of their papers we have counts for
24 papers
Multiple lattice instabilities and complex ground state in CsAgBiBr
Xing He, Matthew Krogstad, Mayanak K Gupta +11
Metal halides perovskites (MHPs) are attracting considerable interest for optoelectronic applications, with CsAgBiBr one of the main contenders among lead-free systems. Cs$…
Sodium Diffusion and Dynamics in Na2Ti3O7: Neutron Scattering and Ab-initio Simulations
Ranjan Mittal, Sajan Kumar, Mayanak K. Gupta +7
We have performed quasielastic and inelastic neutron scattering (QENS and INS) measurements from 300 K to 1173 K to investigate the Na-diffusion and underlying host dynamics in Na2…
Stoichiometric Tuning of Lattice Flexibility and Na Diffusion in NaAlSiO4: Quasielastic Neutron Scattering Experiment and Ab-initio Molecular Dynamics Simulations
Mayanak K. Gupta, Ranjan Mittal, Sajan Kumar +7
We have performed quasielastic neutron scattering (QENS) experiments up to 1243 K and ab-initio molecular dynamics (AIMD) simulations to investigate the Na diffusion in various pha…
Phase Transition Mechanism of Hexagonal Graphite to Hexagonal and Cubic Diamond: Ab-initio Simulation
Ranjan Mittal, Mayanak Kumar Gupta, Samrath Lal Chaplot
We have performed ab-initio molecular dynamics simulations to elucidate the mechanism of the phase transition at high pressure from hexagonal graphite (HG) to hexagonal diamond (HD…
Pbnm to R3-c phase transformation in (1-x)LaFeO3.xLaMnO3 solid solution due to modifications in structure, octahedral tilt and valence states of Fe-Mn
E. G. Rini, Mayanak. K. Gupta, R. Mittal +3
A theoretically supported experimental study of the (1-x)LaFeO3.xLaMnO3 (LFO-LMO) solid solution is being reported for the first time which reveals a phase transformation from the…
Neutron-Irradiation Induced Magnetization and Persistent Defects at High Temperatures in Graphite
Ranjan Mittal, Mayanak K. Gupta, Sanjay K. Mishra +8
Structural as well as magnetization studies have been carried out on graphite samples irradiated by neutrons over 50 years in the CIRUS research reactor at Trombay. Neutron diffrac…