644 citations · 2.5k across the 29 of their papers we have counts for
29 papers
Enhancement of high dielectric constant in CaCuTiO/RuO composites in the vicinity of the percolation threshold
Rupam Mukherjee, Gavin Lawes, Boris Nadgorny
We observe the large enhancement in the dielectric response near the percolation threshold in a composite nanoparticle system consisting of metallic RuO grains embedded into di…
Oxygen vacancy enhanced room temperature ferromagnetism in Al-doped MgO nanoparticles
Debabrata Mishra, Balaji P. Mandal, Rupam Mukherjee +3
We have investigated the room temperature ferromagnetic order that develops in Al-substituted magnesium oxide, Mg(Al)O, nanoparticles with Al fractions of up to 5 at.%. All samples…
Magnetic structure and magnetoelectric coupling in bulk and thin film FeVO
A. Dixit, G. Lawes, A. B. Harris
We have investigated the magnetoelectric and magnetodielectric response in FeVO, which exhibits a change in magnetic structure coincident with ferroelectric ordering at $T_{N2}…
Magnetically tunable dielectric materials
G. Lawes, T. Kimura, C. M. Varma +3
The coupling between localized spins and phonons can lead to shifts in the dielectric constant of insulating materials at magnetic ordering transitions. Studies on isostructural Se…
Large Low Temperature Specific Heat in Pyrochlore BiTiO
Brent C. Melot, Ronald Tackett, Jim O'Brien +4
Both amorphous and crystalline materials frequently exhibit low temperature specific heats in excess of what is predicted using the Debye model. The signature of this excess specif…
Coupled magnetic and ferroelectric domains in multiferroic Ni3V2O8
I. Cabrera, M. Kenzelmann, G. Lawes +9
Electric control of multiferroic domains is demonstrated through polarized magnetic neutron diffraction. Cooling to the cycloidal multiferroic phase of Ni3V2O8 in an electric field…