Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2009-06-22
Phys. Rev. Lett. 103, 147205 (2009)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 3 figures
Scientific paper
10.1103/PhysRevLett.103.147205
By developing a simple scaling theory for the effect of Hund's interactions on the Kondo effect, we show how an exponential narrowing of the Kondo resonance develops in magnetic ions with large Hund's interaction. Our theory predicts an exponential reduction of the Kondo temperature with spin S of the Hund's coupled moment, a little-known effect first observed in d-electron alloys in the 1960's, and more recently encountered in numerical calculations on multi-band Hubbard models with Hund's interactions. We discuss the consequences of Kondo resonance narrowing for the Mott transition in d-band materials, particularly iron pnictides, and the narrow ESR linewidth recently observed in ferromagnetically correlated f-electron materials.
Coleman Paul
Nevidomskyy Andriy H.
No associations
LandOfFree
Kondo resonance narrowing in d- and f-electron systems 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 Kondo resonance narrowing in d- and f-electron systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Kondo resonance narrowing in d- and f-electron systems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-707525