Electronic Structure of the BaFe$_2$As$_2$ Family of Iron Pnictides

Details Electronic Structure of the BaFe$_2$As$_2$ Family of Iron Pnictides Electronic Structure of the BaFe$_2$As$_2$ Family of Iron Pnictides

2009-02-16

arxiv.org/abs/0902.2628v1

Phys. Rev. B 80, 024515 (2009)

Physics

Condensed Matter

Superconductivity

5 pages, 4 figures

Scientific paper

10.1103/PhysRevB.80.024515

We use high resolution angle-resolved photoemission spectroscopy to study the band structure and Fermi surface topology of the BaFe$_2$As$_2$ iron pnictides. We observe two electron bands and two hole bands near the X-point, $(\pi,\pi)$ of the Brillouin zone, in the paramagnetic state for different doping levels, including electron-doped Ba(Co$_{0.06}$Fe$_{0.94}$)$_2$As$_2$, undoped BaFe$_2$As$_2$, and hole-doped Ba$_{0.6}$K$_{0.4}$Fe$_2$As$_2$. Among these four bands, only the electron bands cross the Fermi level, forming two electron pockets around X, while the hole bands approach but never reach the Fermi level. We show that the band structure of the BaFe$_2$As$_2$ family matches reasonably well with the prediction of LDA calculations after a momentum-dependent shift and renormalization. Our finding resolves a number of inconsistencies regarding the electronic structure of pnictides.

Affiliated with

Also associated with

No associations

Rating

Electronic Structure of the BaFe$_2$As$_2$ Family of Iron Pnictides does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Electronic Structure of the BaFe$_2$As$_2$ Family of Iron Pnictides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic Structure of the BaFe$_2$As$_2$ Family of Iron Pnictides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-462557