4 papers
Non-magnetic insulating phase induced by Jahn-Teller effect in RNiO
Sangeeta Rajpurohit, Liang Z. Tan, Tadashi Ogitsu +1
We propose a three-dimensional multi-orbital tight-binding model for rare-earth nickelates RNiO that treats charge, spin, orbital, and lattice degrees of freedom on equal footi…
Dynamics of ballistic photocurrents driven by Coulomb scattering
Liang Z. Tan, Xavier Andrade, Sangeeta Rajpurohit +2
First principles real-time time dependent density functional theory (rt-TDDFT) calculations reveal the existence of ballistic photocurrents generated by Coulomb scattering, which h…
Optical control of spin-splitting in an altermagnet
Sangeeta Rajpurohit, Revsen Karaalp, Yuan Ping +3
Manipulating and controlling the band structure and the spin-splitting in the newly discovered class of magnetic materials known as 'altermagnets' is highly desirable for their app…
Terahertz field-induced giant symmetry modulations in a van der Waals antiferromagnet
Sheikh Rubaiat Ul Haque, Martin J. Cross, Sangeeta Rajpurohit +19
Strong-field terahertz (THz) excitations enable dynamic control over electronic, lattice and symmetry degrees of freedom in quantum materials. Here, we uncover pronounced terahertz…