We use spectroscopic imaging scanning tunneling microscopy (SI-STM) to visualize the spatial symmetries of the electronic states that occur at the pseudogap energy scale in underdoped cuprates. We find evidence for the intra-unit-cell electronic nematicity - by which we mean the breaking of C4v symmetry within each CuO2 unit cell. We also find that the coexisting incommensurate (smectic) electronic modulations couple to the intra-unit-cell nematicity through their 2π topological defects.
|Journal||Journal of Physics: Conference Series|
|Issue number||PART 2|
|State||Published - 2012|
|Event||26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China|
Duration: 10 Aug 2011 → 17 Aug 2011