We present a formalism to calculate the macroscopic magnetoelectric monopolization from first principles within the density functional theory framework. An expression for the monopolization in the case of insulating collinear magnetism is derived first in terms of spin-polarized Wannier functions then recast as a Berry phase. We propose an extension to the general, non-collinear case which we i...

In this work, the effect of carbon on electrochemical properties multiwalled nanotube (MWCNT) functionalized lithium iron manganese phosphate was studied. an attempt to provide insight into structural and electronic optimized electrode materials, a systematic study based combination spectroscopic techniques conducted. The phosphor-olivine LiFe0.5Mn0.5PO4 synthesized via simple microwave synthes...