Identified specific phonons that couple strongly with spins in multiferroic perovskite oxides.
Contributed to theoretical explanation of anomalous disparity in ferroelectric polarization observed in the bulk form and thin films of BiFeO3.
Showed how cationic disorder and spin-phonon coupling are responsible for magnetoelectric effects, interpreting the observed Raman spectra of AlFeO3.
Theory of magnetoelectric coupling observed in nano-particles of BaTiO3 in terms of coupling between magnetic ordering due to O vacancies at the surface and ferroelectricity at the core.
Provided evidence for a strong spin-phonon coupling in a double perovskite La2NiMnO6, establishing it to be the mechanism of its observed magnetocapacitance.
First-principles prediction of room temperature ferromagnetism in Co-Li co-doped ZnO, which was verified experimentally.
