Topology and Symmetry of Quantum Materials via Nonlinear Optical Responses | Annual
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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 …

Polar metals are challenging to identify spectroscopically because the fingerprints of electric
polarization are often obscured by the presence of screening charges. Here, we unravel …

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

We use first-principles methods to study doped strong ferroelectrics (taking BaTiO3 as a
prototype). Here, we find a strong coupling between itinerant electrons and soft polar …

The coexistence of ferroelectricity and metallicity seems paradoxical, since the itinerant
electrons in metals should screen the long-range dipole interactions necessary for dipole …

Doping ferroelectrics with carriers is often detrimental to polarization. This makes the design
and discovery of metals that undergo a ferroelectriclike transition challenging. In this Letter …

The interplay between spin–orbit coupling and structural inversion symmetry breaking in
solids has generated much interest due to the nontrivial spin and magnetic textures which …

Ferroelectriclike metals are a relatively rare class of materials that have ferroelectriclike
distortion and metallic conductivity. LiOsO 3 is the first demonstrated and the most …

The fate of electric dipoles inside a Fermi sea is an old issue, yet poorly explored. Sr 1− x Ca
x TiO 3 hosts a robust but dilute ferroelectricity in a narrow (0.0018< x< 0.02) window of …