Speaker
Mr
Tejas Parasram Singar
(University of Geneva, Switzerland)
Description
In this work, we will discuss our latest investigations of the Bi$_2$Sr$_2$Ca$_1$Cu$_2$O$_8$$_+$$_\delta$ cuprate superconductor using Scanning Tunneling Microscopy (STM). We focus on the atomic scale periodic charge modulations as a function of doping and magnetic field. Specifically, we try to address the nature and origin of the 4a$_0$×4a$_0$ and (4/3)a$_0$×(4/3)a$_0$ modulations (a$_0$: crystallographic unit cell) using different acquisition modes of STM. The periodic conductance modulations we observe do not reveal the characteristic features usually associated with charge density waves in STM experiments, suggesting they are rather quasiparticle interferences.
Author
Mr
Tejas Parasram Singar
(University of Geneva, Switzerland)
Co-authors
Mr
Genda Gu
(CMPMS Division, Brookhaven National Laboratory)
Mr
Ivan Maggio-Aprile
(University of Geneva)
Mr
Christoph Renner
(University of Geneva, Switzerland)
