Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
1999-10-21
Phys. Rev. Lett. 84, 1276 (2000)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, RevTeX, 3 eps figure, additional material available at http://www.mpi-stuttgart.mpg.de/docs/ANDERSEN/fullerene/
Scientific paper
10.1103/PhysRevLett.84.1276
We study the influence of the lattice structure, the Jahn-Teller effect and the Hund's rule coupling on a metal-insulator transition in AnC60 (A= K, Rb). The difference in lattice structure favors A3C60 (fcc) being a metal and A4C60 (bct) being an insulator, and the coupling to Hg Jahn-Teller phonons favors A4C60 being nonmagnetic. The coupling to Hg (Ag) phonons decreases (increases) the value Uc of the Coulomb integral at which the metal-insulator transition occurs. There is an important partial cancellation between the Jahn-Teller effect and the Hund's rule coupling.
Gunnarsson Olle
Han Jong E.
Koch Elliott
No associations
LandOfFree
Metal-insulator transitions: Influence of lattice structure, Jahn-Teller effect, and Hund's rule coupling 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 Metal-insulator transitions: Influence of lattice structure, Jahn-Teller effect, and Hund's rule coupling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal-insulator transitions: Influence of lattice structure, Jahn-Teller effect, and Hund's rule coupling will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-250030