UnivCollegeLondon PyroelectricDetector YttriaStabilizedZirconia temp Memory ULCA C_AFM BiVO4 MultiferroicMaterials Vortex PpLdpe LithiumNiobate Sidewall ItoGlass TappingMode GaP PrCurve Pinpoint Roughness Non-ContactMode Monisha BismuthVanadate Ram PtfeFilter Silver Beads Annealed Hexacontane DLaTGS Praseodymium INSP molecules Polyvinylidene_fluoride Vac Singapore