Comment on "Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As [Phys. Rev. Lett. 107, 187203 (2011)]"

Details Comment on "Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As [Phys. Rev. Lett. 107, 187203 (2011)]" Comment on "Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As [Phys. Rev. Lett. 107, 187203 (2011)]"

2012-04-13

arxiv.org/abs/1204.2987v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

submitted to Physical Review Letters

Scientific paper

In a recent Letter [Phys. Rev. Lett. 107, 187203 (2011)], Fujii et al. reported Mn 2p photoelectron emission spectra for (Ga,Mn)As recorded using hard x-rays. Due to the enhanced bulk sensitivity, hard-x-ray spectra reveal an extra "low-binding-energy peak", which is absent in surface-sensitive spectra recorded using soft x-rays. Based on Anderson-impurity-model calculations, Fujii et al. assigned the low-binding-energy peak to a cd6L2 final state, and related the variations in its intensity to variations in the As 4p-Mn 3d hybridization strength V. We show here that the definition of the charge-transfer energy considered by Fujii et al. is different from that considered in the Zaanen-Sawatzky-Allen diagram. We note that the Anderson impurity model is insufficient to describe low-binding-energy peaks in hard-x-ray core-level photoemission for transition-metal compounds on the verge of a metal-insulator transition. We propose a more plausible origin for the (Ga,Mn)As low-binding-energy peak, related to the nature of its metal-insulator transition.

Affiliated with

Also associated with

No associations

Rating

Comment on "Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As [Phys. Rev. Lett. 107, 187203 (2011)]" 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 Comment on "Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As [Phys. Rev. Lett. 107, 187203 (2011)]", we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Comment on "Identification of different electron screening behavior between the bulk and surface of (Ga,Mn)As [Phys. Rev. Lett. 107, 187203 (2011)]" will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-144147