19 citations · 113 across the 14 of their papers we have counts for
14 papers
Pressure induced antiferromagnetic-tetragonal to nonmagnetic-collapse-tetragonal insulator-metal transition in ThMnAsN
Smritijit Sen, Houria Kabbour, Haranath Ghosh
We report first principles numerical discovery of hydrostatic pressure driven tetragonal to collapsed tetragonal transition in 1111-type material ThMnAsN accompanied by simultaneou…
Pressure induced Lifshitz transition in ThFeAsN
Smritijit Sen, Guang-Yu Guo
In this paper, we present pressure dependent structural parameters and electronic structure of ThFeAsN superconductor. There are no anomalies in the structural parameters as well a…
Electronic structure, lattice dynamics and magnetism of new ThXAsN (X=Fe,Co,Ni) superconductors: A First Principles Study
Smritijit Sen, Guang-Yu Guo
In this work, we present a comparative first principles study of mechanical properties, electronic structure, phonon dispersion relation, electron-phonon coupling and magnetism in…
Stoner factors of doped 122 Fe-based superconductors: First principles results
Smritijit Sen, Haranath Ghosh
A comprehensive study on the evolution of Stoner factor with doping concentration for various doped 122 systems (like BaFeAs, SrFeAs) of Fe-based superconductors is…
Electronic origin of structural transition in 122 Fe based superconductors
Haranath Ghosh, Smritijit Sen, Abyay Ghosh
Direct quantitative correlations between the orbital order and orthorhombicity is achieved in a number of Fe-based superconductors of 122 family. The former (orbital order) is calc…
Superconductivity on the verge of electronic topological transition in Fe based superconductors
Haranath Ghosh, Smritijit Sen
A comprehensive first principles study on the electronic topological transition in a number of 122 family of Fe based superconductors is presented. Doping as well as temperature dr…
Role of Sn impurity on electronic topological transitions in 122 Fe-based superconductors
Haranath Ghosh, Smritijit Sen
We show that only a few percentage of Sn doping at the Ba site on BaFeAs, can cause electronic topological transition, namely, the Lifshitz transition. A hole like d…
Electronic structures of doped BaFeAs materials: virtual crystal approximation versus super-cell approach
Smritijit Sen, Haranath Ghosh
Employing virtual crystal approximation and super-cell methods for doping, we have performed a comparative study of the electronic structures of various doped BaFeAs materi…
Nematicity, magnetic fluctuation and ferro-spin-orbital ordering in BaFeAs family
Smritijit Sen, Haranath Ghosh
Through detailed electronic structure simulations we show that the electronic orbital ordering (between d and d bands) takes place due to local breaking of in-plane s…
Fermiology of 122 family of Fe-based superconductors: An ab initio study
Smritijit Sen, Haranath Ghosh
Fermiology of various 122 systems are studied through first principles simulation. Electron doping causes expansion of electron and shrinkage of hole Fermi pockets. Isovalent Ru su…
Iron based superconductors: A brief overview
Haranath Ghosh, Smritijit Sen
Fe-based superconductors were discovered in 2008. This discovery with T values up to 56 K, generated a new belief in the field of superconductivity. Till its discovery, high te…
Origin of structural and magnetic transitions in BaFeRuAs materials
Smritijit Sen, Haranath Ghosh, A. K. Sinha +1
Using the experimentally measured temperature and doping dependent structural parameters on Ru doped BaFeAs, orbital-dependent reconstruction of the electronic structure ac…
Intra-inter band pairing, order parameter symmetry in Fe-based superconductors : A model study
Smritijit Sen, Haranath Ghosh
In the quest of why there should be a single transition temperature in a multi-gapped system like Fe-based materials we use two band model for simplicity. The model comprises of sp…
Structural investigations in BaFe2-xRuxAs2 as a function of Ru and temperature
Shilpam Sharma, A. Bharathi, K. Vinod +6
We present Synchrotron XRD measurements on powdered single crystal samples of BaFe2-xRuxAs2 samples, as a function of Ru content at room temperature. The Rietveld refinements revea…