19 citations · 37 across the 3 of their papers we have counts for
5 papers
Matryoshka Phonon Twinning in alpha-GaN
Bin Wei, Qingan Cai, Qiyang Sun +5
Understanding lattice dynamics is crucial for effective thermal management in high-power electronic devices because phonons dominate thermal transport in most semiconductors. This…
Screening piezoelectricity in determination of flexoelectric coefficient at nanoscale
Yingzhuo Lun, Hao Zhou, Di Yao +2
Piezoelectricity usually accompanies with flexoelectricity in polar materials which is the linear response of polarization to a strain gradient. Therefore, it is hard to eliminate…
Analytical method to determine flexoelectric coupling coefficient at nanoscale
Hao Zhou, Yongmao Pei, Jiawang Hong +1
Flexoelectricity is defined as the coupling between strain gradient and polarization, which is expected to be remarkable at nanoscale. However, measuring the flexoelectricity at na…
Electrically driven octahedral rotations in SrTiO3 and PbTiO3
Jiawang Hong, David Vanderbilt
We investigate the oxygen octahedral rotations that occur in two perovskites, SrTiO3 and PbTiO3, as a function of applied three-dimensional electric displacement field, allowing us…
External uniform electric field removing flexoelectric effect in epitaxial ferroelectric thin films
Hao Zhou, Jiawang Hong, Yihui Zhang +3
Using the modified Landau-Ginsburg-Devonshire thermodynamic theory, it is found that the coupling between stress gradient and polarization, or flexoelectricity, has significant eff…