Stephen Chege

activity

20202025

most citedStrain dependence of the Bloch domain component in 180

^{\circ}

domains in bulk PbTiO

_{3}

from first-principles

4 citations · 5 across the 3 of their papers we have counts for

collaborators

3 papers

cond-mat.mtrl-sci2025★ 4 cited

Strain dependence of the Bloch domain component in 180 $^{\circ}$ domains in bulk PbTiO $_{3}$ from first-principles

Stephen Chege, Louis Bastogne, Fernando Gómez-Ortiz +4

We investigate the emergence of Bloch-type polarization components in 180 $^{\circ}$ ferroelectric domain walls in bulk PbTiO $_{3}$ under varying mechanical boundary conditions, using…

cond-mat.mtrl-sci2022★ 1 cited

Low Born effective Charges, High Covalency and Strong Optical Activity in $X_{3}^{2 +}$ Bi $^{3 -}$ N $^{3 -}$ ( $X$ =Ca,Sr,Ba) $in v er se$ -perovskites

Jasmine Wakini, Carolyne Songa, Stephen Chege +6

We compute for the first time a complete charge analysis (Bader and Born effective) on $X_{3}^{2 +}$ Bi $^{3 -}$ N $^{3 -}$ ( $X$ =Ca,Sr,Ba). The crystals show a great electron sharing with l…

cond-mat.mtrl-sci2020

Interplay of lattice distortion and bands near the Fermi level in $A$ TiO $_{3}$ ( $A$ =Ca, Sr, Ba)

Patrick Ning'i, Stephen Chege, James Sifuna +1

The structural and electronic properties of $A$ TiO $_{3}$ ( $A$ =Ca, Sr, Ba) have been investigated under strain-free situation and with realistic constraints using first-principles cal…

Strain dependence of the Bloch domain component in 180∘ domains in bulk PbTiO3​ from first-principles

Low Born effective Charges, High Covalency and Strong Optical Activity in X32+​Bi3−N3− (X=Ca,Sr,Ba) inverse-perovskites

Interplay of lattice distortion and bands near the Fermi level in ATiO3​ (A=Ca, Sr, Ba)

Strain dependence of the Bloch domain component in 180 $^{\circ}$ domains in bulk PbTiO $_{3}$ from first-principles

Low Born effective Charges, High Covalency and Strong Optical Activity in $X_{3}^{2 +}$ Bi $^{3 -}$ N $^{3 -}$ ( $X$ =Ca,Sr,Ba) $in v er se$ -perovskites

Interplay of lattice distortion and bands near the Fermi level in $A$ TiO $_{3}$ ( $A$ =Ca, Sr, Ba)