Avinash Singh

activity

19982025

most citedFerromagnetism in a dilute magnetic semiconductor -- Generalized RKKY interaction and spin-wave excitations

29 citations · 411 across the 64 of their papers we have counts for

collaborators

64 papers

cond-mat.str-el2025

Spin-orbital order and excitations in $3 d^{4}$ , $4 d^{4}$ , and $5 d^{4}$ systems: Application to $BaFe O_{3}$ , $S r_{2} Ru O_{4}$ , $S r_{2} YIr O_{6}$ , and $K_{2} OsC l_{6} 4$

Shahid Ahmad, Harshvardhan Parmar, Shubhajyoti Mohapatra +1

Evolution of composite spin-orbital order and coupled spin-orbital excitations is studied in a variety of $d^{4}$ systems with $n$ = $4$ electrons in the $t_{2 g}$ orbital sector using…

cond-mat.str-el2022

Orbital entangled antiferromagnetoc order and spin-orbit-distortion exciton in $S r_{2} V O_{4}$

Shubhajyoti Mohapatra, Dheeraj Kumar Singh, Rajyavardhan Ray +2

With electron filling $n = 1$ in the $S r_{2} V O_{4}$ compound, the octahedrally coordinated $t_{2g}$ orbitals are strongly active due to tetragonal distortion induced crystal fiel…

cond-mat.str-el2021

Schwinger-Boson mean-field study of spin-1/2 $J_{1}$ - $J_{2}$ - $J_{χ}$ model in honeycomb lattice: thermal Hall signature

Rohit Mukherjee, Ritajit Kundu, Avinash Singh +1

We theoretically investigate, within the Schwinger-Boson mean-field theory, the transition from a gapped $Z_{2}$ quantum spin-liquid, in a $J_{1}$ - $J_{2}$ Heisenberg spin-1/2 system in…

cond-mat.str-el2021

Spin-orbit coupling and magnetism in $S r_{2} Cr O_{4}$

Shubhajyoti Mohapatra, Dheeraj Kumar Singh, Avinash Singh

With octahedrally coordinated $t_{2g}$ orbitals which are active at filling $n = 2$ , the $S r_{2} Cr O_{4}$ compound exhibits rich interplay of spin-orbital physics with tetragonal…

cond-mat.str-el2021★ 3 cited

Coupled spin-orbital fluctuations in a three orbital model for $4 d$ and $5 d$ oxides with electron fillings $n = 3, 4, 5$ -- Application to $NaOs O_{3}$ , $C a_{2} Ru O_{4}$ , and $S r_{2} Ir O_{4}$

Shubhajyoti Mohapatra, Avinash Singh

A unified approach is presented for investigating coupled spin-orbital fluctuations within a realistic three-orbital model for strongly spin-orbit coupled systems with electron fil…

cond-mat.str-el2020★ 3 cited

Role of orbital off-diagonal spin and charge condensates in a three orbital model for $C a_{2} Ru O_{4}$ -- Coulomb renormalized spin-orbit coupling, orbital moment, and tunable magnetic order

Shubhajyoti Mohapatra, Ritajit Kundu, Ashutosh Dubey +2

Strongly anisotropic spin-orbit coupling (SOC) renormalization and strongly enhanced orbital magnetic moments are obtained in the fully self consistent approach including the orbit…

Spin-orbital order and excitations in 3d4, 4d4, and 5d4 systems: Application to BaFeO3​, Sr2​RuO4​, Sr2​YIrO6​, and K2​OsCl6​4

Orbital entangled antiferromagnetoc order and spin-orbit-distortion exciton in Sr2​VO4​

Schwinger-Boson mean-field study of spin-1/2 J1​-J2​-Jχ​ model in honeycomb lattice: thermal Hall signature

Spin-orbit coupling and magnetism in Sr2​CrO4​

Coupled spin-orbital fluctuations in a three orbital model for 4d and 5d oxides with electron fillings n=3,4,5 -- Application to NaOsO3​, Ca2​RuO4​, and Sr2​IrO4​