Measuring the piezoresistance in p-type silicon up to 3GPa, we found it to decrease with compressive stress beyond the predicted saturation. This result has potential implications for the Si technology roadmap.
One dimensional charge density wave discovered by scanning tunneling microscopy in CaC6, a superconducting graphite intercalate compound.
A one dimensional electronic state has been uncovered along the core of a self assembled endotaxial Si nanoline at the Si(001):H surface, with a range of promising properties to explore 1D physics.
The oxygen migration scenario for electroresistive switching in manganites gets new support. Mobile oxygen adatoms and defects have been observed by scanning tunneling microscopy with atomic resolution at the surface of PrSr2Mn2O7.
Migrating surface charges can simulate the giant piezoresistance observed in silicon nano- and micro-structures. See also comments in APS Physics Synopsis, Nature Materials Research Highlight and Physics World News.
The PhysiScope draws the attention of Nature Materials. See also the Editorial.
Giant piezoresistance observed in a metal silicon hybrid structure. Article was featured in AIP Physics News Update.