We have determined the full magnetic dispersion relations of multiferroic BiFeO3. In particular, two excitation gaps originating from magnetic anisotropies have been clearly observed. The direct observation of the gaps enables us to accurately determine the Dzyaloshinskii-Moriya (DM) interaction and the single ion anisotropy. The DM interaction supports a sizable magnetoelectric coupling in thi...

In this work, a mechanochemical procedure is proposed as a simple and fast method to synthesize pure BiFeO3 perovskite phase as a nanostructured material without the need for purification treatments, while the mechanochemical reaction mechanism has been investigated and correlated with that of the conventional solid-state reaction. Thus, different milling conditions have been used as a tool for...

BACKGROUND Over 50,000 non-medical healthcare professionals across the United Kingdom now have prescribing capabilities. However, there is no evidence available with regards to the extent to which non-medical prescribing (NMP) has been implemented within organisations across a strategic health authority (SHA). The aim of the study was to provide an overview of NMP across one SHA. METHODS NMP ...

Kaolin yüzeyine perovskit yapılı BiFeO3 (BFO) nanoparçacıklarının yerleştirilmesiyle Kaolin-BiFeO3 (KBFO) nanokompoziti hazırlandı. Saf kaolin (K), saf BFO ve hazırlanan KBFO nanokompozitin fotokatalitik aktiviteleri UVA görünür bölge ışımaları altında katyonik bir boyar madde olan kristal viyole (KV)’nin bozunması incelenerek değerlendirildi. nanokompozitinin diğer katalizörlere nispeten daha ...

We review the concept of surface charge, first, in context polarization ferroelectric materials and, second, layers charged ions ionic insulators. While former is traditionally discussed ferroelectrics community and latter science community, we remind reader that two descriptions are conveniently unified within modern theory polarization. In both cases, charge leads to electrostatic instability...