65 citations · 206 across the 12 of their papers we have counts for
13 papers
Generalized relation between electromechanical responses at fixed voltage and fixed electric field
Daniel Bennett, Daniel Tanner, Philippe Ghosez +2
We present a general relation between the electromechanical couplings of infinitesimal strain and electric field to arbitrary order, measured at fixed voltage and at fixed electric…
Raman spectroscopy of group-IV GeSn alloys: theory and experiment
Daniel S. P. Tanner, Sreyan Raha, Jessica Doherty +5
GeSn alloys are a promising candidate material to realise direct-gap group-IV semiconductors for applications in Si-compatible electronic and photonic devices. Here,…
Divergent electrostriction at ferroelectric phase transitions: example of strain-induced ferroelectiricty in KTaO3
Daniel S. P. Tanner, Pierre-Eymeric Janolin, Eric Bousquet
We investigate the electrostrictive response across a ferroelectric phase transition from first-principles calculations and refute the prevailing view of constant electrostriction…
Fully analytic valence force fields for the relaxation of group-IV semiconductor alloys: elastic properties of group-IV materials calculated from first principles
Daniel S. P. Tanner, Christopher A. Broderick, Amy C. Kirwan +2
SiGe(C,Sn,Pb) alloys have attracted significant attention as a route to achieve a direct-gap group-IV semiconductor. Using density functional theory (DFT) - e…
Optimized methodology for the calculation of electrostriction from first-principles
Daniel S. P. Tanner, Eric Bousquet, Pierre-Eymeric Janolin
In this work we present a new method for the calculation of the electrostrictive properties of materials using density functional theory. The method relies on the thermodynamical e…
Polar InGaN/GaN quantum wells: Revisiting the impact of carrier localization on the green gap problem
Daniel S. P. Tanner, Philip Dawson, Menno J. Kappers +2
We present a detailed theoretical analysis of the electronic and optical properties of c-plane InGaN/GaN quantum well structures with In contents ranging from 5% to 25%. Special at…