75 citations · 119 across the 3 of their papers we have counts for
5 papers
Coupled Phonons, Magnetic Excitations and Ferroelectricity in AlFeO3: Raman and First-principles Studies
Pradeep Kumar, A. Bera, D. V. S. Muthu +7
We determine the nature of coupled phonons and magnetic excitations in AlFeO3 using inelastic light scattering from 5 K to 315 K covering a spectral range from 100-2200 cm-1 and co…
Multiferroic and magnetoelectric nature of GaFeO3, AlFeO3 and related oxides
Rana Saha, Ajmala Shireen, Sharmila N. Shirodkar +3
GaFeO3, AlFeO3 and related oxides are ferrimagnetic exhibiting magnetodielectric effect. There has been no evidence to date for ferroelectricity and hence multiferroicity in these…
Large magnetoelectric effect in the Al1-xGaxFeO3 family of multiferroic Oxides
Ajmala Shireen, Rana Saha, A. Sundaresan +1
AlFeO3, GaFeO3 and Al0.5Ga0.5FeO3, all crystallizing in a non-centrosymmetric space group, are multiferroic and also exhibit magnetoelectric properties, with Al0.5Ga0.5FeO3 showing…
Implications and consequences of ferromagnetism universally exhibited by inorganic nanoparticles
A. Sundaresan, C. N. R. Rao
Occurrence of surface ferromagnetism in inorganic nanoprticles as a universal property not only explains many of the unusual magnetic features of oxidic thin films, but also sugges…
Temperature-Dependent Infrared Reflectivity Studies of Multiferroic TbMnO_{3}: Evidence for Spin-Phonon Coupling
Pradeep Kumar, Surajit Saha, C. R. Serrao +2
We have measured near normal incidence far infrared (FIR) reflectivity spectra of a single crystal of TbMnO3 from 10K to 300K in the spectral range of 50 cm to 700 cm…