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6 papers · 2 filters
A new look at the temperature-dependent properties of the antiferroelectric model PbZrO3: an effective Hamiltonian study
Kinnary Patel, Bin Xu, Sergey Prosandeev +4
A novel atomistic effective Hamiltonian scheme, incorporating an original and simple bilinear energetic coupling, is developed and used to investigate the temperature dependent phy…
Classification of second harmonic generation effect in magnetically ordered materials
Rui-Chun Xiao, Ding-Fu Shao, Wei Gan +6
The relationship between magnetic order and the second harmonic generation (SHG) effect is a fundamental area of study in condensed matter physics with significant practical implic…
Spin-current driven Dzyaloshinskii-Moriya interaction in the multiferroic BiFeO3 from first-principles
Sebastian Meyer, Bin Xu, Matthieu Verstraete +2
The electrical control of magnons opens up new ways to transport and process information for logic devices. In magnetoelectrical multiferroics, the Dzyaloshinskii-Moriya (DM) inter…
Origin of negative electrocaloric effect in Pnma-type antiferroelectric perovskites
Ningbo Fan, Jorge Íñiguez, L. Bellaiche +1
Anomalous electrocaloric effect (ECE) with decreasing temperature upon application of an electric field is known to occur in antiferroelectrics (AFEs), and previous understanding r…
A gate-programmable van der Waals metal-ferroelectric-semiconductor memory
Wanying Li, Yimeng Guo, Zhaoping Luo +10
Ferroelecticity, one of the keys to realize nonvolatile memories owing to the remanent electric polarization, has been an emerging phenomenon in the two-dimensional (2D) limit. Yet…
Switchable and unswitchable bulk photovoltaic effect in two-dimensional interlayer-sliding ferroelectrics
Rui-Chun Xiao, Yang Gao, Hua Jiang +3
Spontaneous polarization and bulk photovoltaic effect (BPVE) are two concomitant physical properties in ferroelectric materials. The flipping of ferroelectric order usually accompa…