Nature - USA (2020-08-20)

380 | Nature | Vol 584 | 20 August 2020 Article ceramics with a quasi-Ohmic contact show a negligible piezoelectric effect (Exte ...

Nature | Vol 584 | 20 August 2020 | 381 Sze, S. M. & Ng, K. K. Physics of Semiconductor Devices (John Wiley & Sons, 200 ...

Article Methods Symmetry analysis of (001)-oriented Nb:SrTiO 3 and Nb:TiO 2 Schottky junctions The Nb:SrTiO 3 single crystal bel ...

the electron will flow through the external circuit, giving rise to a dis- placive electric current (Extended Data Fig. 2b). Sim ...

Article a piezoelectric actuator (P-888.51, PI Ceramic) and a micrometre head (number 153-201, Mitutoyo). The dynamic stress tha ...

d=Uσijd+εEij mmd+PTd,S (28) where ε is the strain, P is the electric polarization, T is the temperature and S is the volume dens ...

Article M ε EE P Eσ χ σ 2= ∂ ∂∂ = ∂ ∂∂ = ∂ ∂ ijno ij , (46) no n oij no σ ij (^22) keeping in mind that            ...

Extended Data Fig. 1 | Electrical-f ield-engineered symmetry in (001)-oriented Nb:SrTiO 3 and Nb:TiO2 crystals. a, Schematic sho ...

Article Extended Data Fig. 2 | Microscopic processes of interface piezoelectric and pyroelectric effects. a, The electric polari ...

Extended Data Fig. 3 | Electric characterization of the Al/Nb:SrTiO 3 /Al and Au/Nb:TiO 2 junctions. a, C−2–V curve of the Au/Nb ...

Article Extended Data Fig. 4 | Current output by the Nb:SrTiO 3 and Nb:TiO 2 crystals with Ohmic contacts and charges generated ...

Extended Data Fig. 5 | Electric characterization of the Au/Nb:Ba0.6Sr0.4TiO 3 junction. a, Temperature-dependent dielectric cons ...

Article Extended Data Fig. 6 | Negligible piezoelectricity in Ohmic contacted ceramics. a, The current density output by the Au/ ...

Extended Data Fig. 7 | Direct piezoelectric effect characterization setup. ...

Article Extended Data Fig. 8 | Converse piezoelectric effect characterization. a, Schematic showing the measurement setup. b, Fo ...

Extended Data Fig. 9 | Pyroelectric effect characterization setup. ...

382 | Nature | Vol 584 | 20 August 2020 Article Liquid–liquid transition and critical point in sulfur Laura Henry^1 , Mohamed Me ...

Nature | Vol 584 | 20 August 2020 | 383 temperature at constant load along pathways P9, P10 (Supplementary Fig. 9). These densit ...

384 | Nature | Vol 584 | 20 August 2020 Article This work thus demonstrates that sulfur undergoes a first-order phase transition ...

Nature | Vol 584 | 20 August 2020 | 385 from the LLCP, and then decreases, in contrast to the monotonic increase of density alon ...