Electronic nematicity in a cuprate superconductor and beyond

Monday, October 2, 2017 - 2:30pm

Over the course of extensive experimental studies of La2-xSrxCuO4 films synthesized by molecular beam epitaxy, we discovered that a spontaneous voltage develops across the sample, transverse to the electrical current. This unusual metallic state, in which the rotational symmetry of the electron fluid is spontaneously broken, occurs in a large temperature and doping region. The superconducting state always emerges out of this nematic metal state. I will also present our results in searching for electronic nematicity in other oxides, implying it may be pervasive among strongly-correlated materials.

Location: 
Room #3 LeConte Hall
Speaker: 
Jie Wu
Affiliation: 
Brookhaven Nat. Lab.