Ferroelectric materials are fascinating for their non-volatile switchable electric polarizations
induced by the spontaneous inversion-symmetry breaking. However, in all of the …

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 …

Single‐element polarization in low dimensions is fascinating for constructing next‐
generation nanoelectronics with multiple functionalities, yet remains difficult to access with …

The colossal permittivity of electronic conductors (specifically metals and carbons) is
reviewed. Relative permittivity (even 10 8) was predicted theoretically by Jonscher in 1999 …

Piezopermittivity refers to the reversible change of the electric permittivity (the main material
property that describes the dielectric behavior) with the elastic strain. This paper addresses …

Continuous carbon fiber carbon-matrix (C/C) and polymer-matrix (CFRP) structural
composites without poling are electrets. Their DC electric field E (hence the volumetric …

The dynamics of direct-current-induced electric polarization/depolarization of a conductive
material (graphite) are studied. Forward-current polarization and reverse-current …

The discovery of polar metals, bulk band conductors which combine broken inversion
symmetry and metallic conductivity, has disrupted the long-standing assumption that polar …

Abstract Absorption-dominant radio-wave (0.2–2.0 GHz) attenuation loss is comparatively
reported for materials of high electrical conductivity, namely metals (aluminum and steel) …