444 citations
- Centre National de la Recherche ScientifiqueFR5 papers
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4 papers · 1 filter
Residual gas absorption effect on the electronic structure of Cr-doped Bi2Se3
T Yilmaz, W Hines, S Alraddadi +2
In this report, we identify the origin of the temperature dependence of the surface energy gap in impurity-doped topological insulators. The gap at the Dirac point and its variatio…
Terahertz dielectric response and coupled dynamics of ferroelectrics and multiferroics from effective Hamiltonian simulations
Dawei Wang, Jeevaka Weerasinghe, Abdullah Albarakati +1
Ferroelectric and multiferroic materials form an important class of functional materials. Over the last twenty years, first-principles-based effective Hamiltonian approaches have b…
Finite-Temperature Properties of Ba(Zr,Ti)O Relaxors From First Principles
A. R. Akbarzadeh, S. Prosandeev, Eric J. Walter +2
A first-principles-based technique is developed to investigate properties of Ba(Zr,Ti)O relaxor ferroelectrics as a function of temperature. The use of this scheme provides ans…
A new temperature scale T* in lead-based relaxor systems
B. Dkhil, P. Gemeiner, A. Al-Barakaty +4
Via a combination of various experimental and theoretical techniques, a peculiar, identical temperature scale T* is found to exist in all complex lead-based relaxor ferroelectrics.…