Over the last 30 years, the study of ferroelectric oxides has been revolutionized by the
implementation of epitaxial‐thin‐film‐based studies, which have driven many advances in …

Topology and Symmetry of Quantum Materials via Nonlinear Optical Responses | Annual
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Coexistence of reversible polar distortions and metallicity leading to a ferroelectric metal,
first suggested by Anderson and Blount in 1965, has so far remained elusive. Electrically …

We review the class of materials known as polar metals, in which polarity and metallicity
coexist in the same phase. While the notion of polar metals was first invoked more than 50 …

The possibility of reconciliation between seemingly mutually exclusive properties in one
system can not only lead to theoretical breakthroughs but also potential novel applications …

Taking a historical perspective, we provide a brief overview of the first-principles modeling of
ferroelectric perovskite oxides over the past 30 years. We emphasize how the work done by …

The critical challenges of the energy crisis and environmental degradation promote
innovative approaches for energy conversion. Semiconductor‐based photocatalytic …

Ferroelectric semiconductors represent an exciting branch of new‐generation optoelectronic
devices. However, regarding severe polarization deterioration caused by leakage current, it …

The coexistence of metallicity and ferroelectricity has been an intriguing and controversial
phenomenon as these two material properties are considered incompatible in bulk. We …

The technique of coupling cation ordering with other microscopic degrees of freedom was
employed to induce magnetic polar phenomena within the materials belonging to the double …