Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Mohapatra, Shubhajyoti"'
Autor:
Mohapatra, Shubhajyoti, Singh, Dheeraj Kumar, Ray, Rajyavardhan, Ghosh, Sayandip, Singh, Avinash
With electron filling $n=1$ in the $\rm Sr_2VO_4$ compound, the octahedrally coordinated $t_{\rm 2g}$ orbitals are strongly active due to tetragonal distortion induced crystal field tuning by external agent such as pressure. Considering the full rang
Externí odkaz:
http://arxiv.org/abs/2202.11971
With octahedrally coordinated $t_{\rm 2g}$ orbitals which are active at filling $n=2$, the $\rm Sr_2CrO_4$ compound exhibits rich interplay of spin-orbital physics with tetragonal distortion induced crystal field tuning by external agent such as pres
Externí odkaz:
http://arxiv.org/abs/2107.07214
Autor:
Mohapatra, Shubhajyoti, Singh, Avinash
Publikováno v:
J. Phys.: Condens. Matter 33, 345803 (2021)
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 fillings $n=3,4,5$ in the $t_{2g}$ sector of $d_{yz},d_{xz},d_{xy}$ orbit
Externí odkaz:
http://arxiv.org/abs/2102.01400
Publikováno v:
Journal of Magnetism and Magnetic Materials 537, 168172 (2021)
Strongly anisotropic spin-orbit coupling (SOC) renormalization and strongly enhanced orbital magnetic moments are obtained in the fully self consistent approach including the orbital off-diagonal spin and charge condensates. For moderate tetragonal d
Externí odkaz:
http://arxiv.org/abs/2007.06978
Autor:
Mohapatra, Shubhajyoti, Singh, Avinash
Publikováno v:
J. Phys.: Condens. Matter 32, 485805 (2020)
Including the orbital off-diagonal spin and charge condensates in the self consistent determination of magnetic order within a realistic three-orbital model for the $4d^4$ compound $\rm Ca_2 Ru O_4$, reveals a host of novel features including strong
Externí odkaz:
http://arxiv.org/abs/2006.02114
Autor:
Mohapatra, Shubhajyoti, Singh, Avinash
Publikováno v:
Journal of Magnetism and Magnetic Materials, 512, 166997 (2020)
The high-energy collective modes of particle-hole excitations across the spin-orbit gap in $\rm Sr_2IrO_4$ are investigated using the transformed Coulomb interaction terms in the pseudo-spin-orbital basis constituted by the $J=1/2$ and $3/2$ states a
Externí odkaz:
http://arxiv.org/abs/2002.02415
Autor:
Mohapatra, Shubhajyoti, Singh, Avinash
Publikováno v:
J. Phys. Condens. Matter 33, 065802 (2020)
By transforming from the pure-spin-orbital ($t_{\rm 2g}$) basis to the spin-orbital entangled pseudo-spin-orbital basis, the pseudo-spin rotation symmetry of the different Coulomb interaction terms is investigated under SU(2) transformation in pseudo
Externí odkaz:
http://arxiv.org/abs/2001.00190
Autor:
Mohapatra, Shubhajyoti, Singh, Avinash
Novel magnetic ordering on the honeycomb lattice due to emergent weak anisotropic interactions generated by the mixing between the $J=1/2$ sector and the magnetically inactive 3/2 sector is investigated in a three-orbital interacting electron model i
Externí odkaz:
http://arxiv.org/abs/1908.09130
Publikováno v:
Physical Review B 100, 140409(R) (2019)
Iridate heterostructures are gaining interest as their magnetic properties are much more sensitive to structural distortion compared to pure spin systems due to spin-orbital entanglement induced by strong spin-orbit coupling. While bulk monolayer and
Externí odkaz:
http://arxiv.org/abs/1906.09879
Autor:
Mohapatra, Shubhajyoti, Singh, Avinash
Transformation of Coulomb interaction terms to the pseudo-orbital basis constituted by $J=1/2$ and $3/2$ states arising from spin-orbit coupling provides a versatile tool. This formalism is applied to investigate magnetic anisotropy effects on low-en
Externí odkaz:
http://arxiv.org/abs/1903.03360