16 citations · 50 across the 8 of their papers we have counts for
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A microscopic design rule for spin supersolids in triangular-lattice magnets
Ryota Ono, Jun'ichi Ieda, Michiyasu Mori +1
Spin supersolids emerge as a central topic in frustrated magnetism, motivating the search for realization in quantum materials. To this end, we study the origin of exchange anisotr…
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…
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…
Ferromagnetic ferroelectricity due to the Kugel-Khomskii mechanism of the orbital ordering assisted by atomic Hund's second rule effects
I. V. Solovyev, R. Ono, S. A. Nikolaev
The exchange interactions in insulators depend on the orbital state of magnetic ions, obeying certain phenomenological principles, known as Goodenough-Kanamori-Anderson rules. Part…
Magnetically induced polarization in centrosymmetric bonds
Igor Solovyev, Ryota Ono, Sergey Nikolaev
We reveal the microscopic origin of electric polarization induced by noncollinear magnetic order. We show that in Mott insulators, such is given by all possible…
Fingerprints of spin-current physics on magnetoelectric response in the spin- magnet BaCuGeO
Ryota Ono, Sergey Nikolaev, Igor Solovyev
The single-site anisotropy vanishes for the spin-1/2 as a consequence of Kramers degeneracy. We argue that similar property holds for the magnetically induced electric polarization…