Unusual field dependence of radio frequency magnetoimpedance in La0.67Ba0.33MnO3

Unusual hydrogen atom display in solid acids

Unusual Low-Energy Phonon Dynamics in the Negative Thermal Expansion Compound ZrW2O8

Unusual polarization patterns in flat epitaxial ferroelectric nanoparticles

Unusual polymerization in the Li4C60 fulleride

Unusual structural tuning of magnetism in cuprate perovskites

Unusual thermoelectric behavior of packed crystalline granular metals

Unusual transport properties of ferromagnetic Heusler alloy Co$_2$TiSn

Unusual vortex structure in ultrathin Pb(Zr$_{0.5}$Ti$_{0.5}$)O$_3$ films

Unusually High Thermal Conductivity of Carbon Nanotubes

Unusually large enhancement of thermopower in an electric field induced two-dimensional electron gas

Unusually strong space-charge-limited current in thin wires

Unveiling a two-dimensional electron gas with universal subbands at the surface of SrTiO3

Unveiling the ac Dynamics of Ferroelectric Domains by Investigating the Frequency Dependence of Hysteresis Loops

Unzipping graphene: Extendend defects by ion irradiation

Up-conversion injection in Rubrene/Perylene-diimide-heterostructure electroluminescent diodes

Upcoming planetary missions and the applicability of high temperature superconductor bolometers

Upcoming planetary missions and the applicability of high temperature superconductor bolometers

Upper bound on the disordered density of sphere packing and the Kepler Conjecture

Upper limit to magnetism in LaAlO3/SrTiO3 heterostructures