STM/STS study on large pseudogap and nodal superconducting gap in Bi2201(La) and Bi2212

T. Kurosawa, T. Yoneyama, Y. Takano +8

In the present work, scanning tunneling microscopy/spectroscopy (STM/STS) measurements were carried out on underdoped $\mathrm{B}{\mathrm{i}}_2\mathrm{S}{\mathrm{r}}_{2-x}\mathrm{L}{\mathrm{a}}_x\mathrm{Cu}{\mathrm{O}}_{6+\delta }$ and $\rm Bi_2Sr_2C…