3 papers
cond-mat.mtrl-sci2026
Exchange striction determines how fast antiferromagnetic insulators demagnetize
Aleksandr Buzdakov, Ravi Kaushik, Nikolai Khokhlov +2
Antiferromagnets combine terahertz spin dynamics with insensitivity to stray fields, and how quickly their order can be manipulated sets the speed limit on device operation. Femtos…
cond-mat.str-el2025
Finite temperature magnetic interactions from first principles
Ravi Kaushik, Ryota Ono, Sergey Artyukhin
Density functional theory has demonstrated remarkable predictive power in calculating magnetic properties at zero temperature. At finite temperatures, thermally excited phonons may…
cond-mat.str-el2024
Entangled orbital, spin, and ferroelectric orders in -electron magnet CsO
Ryota Ono, Ravi Kaushik, Sergey Artyukhin +3
Alkali superoxides differ from conventional transition metal magnets, exhibit magnetism from partially occupied oxygen molecular -orbitals. Among them, CsO stands out for…