Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2004-03-22
Phys. Rev. B 70 (2004) 224514.
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, 4 figures
Scientific paper
10.1103/PhysRevB.70.224514
By applying an unrestricted Hartree-Fock and a Random Phase approximations to a multiband Peierls-Hubbard Hamiltonian, we study the phonon mode structure in models of transition metal oxides in the presence of intrinsic nanoscale inhomogeneities induced by hole doping. We identify low frequency $local$ vibrational modes pinned to the sharp interfaces between regions of distinct electronic structure (doped and undoped) and separated in frequency from the band of extended phonons. A characteristic of these ``edge'' modes is that their energy is essentially insensitive to the doping level. We discuss the experimental manifestations of these modes in inelastic neutron scattering, and also in spin and charge excitation spectra.
Bishop Alan R.
Kaneshita Eiji
Martin Ivar
McQueeney Robert J.
Yu Zhi-Gang
No associations
LandOfFree
Vibrational edge modes in intrinsically heterogeneous doped transition metal oxides 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 Vibrational edge modes in intrinsically heterogeneous doped transition metal oxides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibrational edge modes in intrinsically heterogeneous doped transition metal oxides will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-678075