Physics – Condensed Matter – Superconductivity
Scientific paper
2012-03-13
Phys. Rev. B 85, 115109 (2012)
Physics
Condensed Matter
Superconductivity
9 pages, 8 figures
Scientific paper
10.1103/PhysRevB.85.115109
We have observed the bulk Fermi surface (FS) in an overdoped ($x$=0.3) single crystal of La$_{2-x}$Sr$_x$CuO$_4$ by using Compton scattering. A two-dimensional (2D) momentum density reconstruction from measured Compton profiles yields a clear FS signature in the third Brillouin zone along [100]. The quantitative agreement between density functional theory (DFT) calculations and momentum density experiment suggests that Fermi-liquid physics is restored in the overdoped regime. In particular the predicted FS topology is found to be in good accord with the corresponding experimental data. We find similar quantitative agreement between the measured 2D angular correlation of positron annihilation radiation (2D-ACAR) spectra and the DFT based computations. However, 2D-ACAR does not give such a clear signature of the FS in the extended momentum space in either the theory or the experiment.
Al-Sawai W.
Bansil Arun
Barbiellini Bernardo
Basak Soumen
Eijt S. W. H.
No associations
LandOfFree
Bulk Fermi surface and momentum density in heavily doped La$_{2-x}$Sr$_x$CuO$_4$ using high resolution Compton scattering and positron annihilation spectroscopies 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 Bulk Fermi surface and momentum density in heavily doped La$_{2-x}$Sr$_x$CuO$_4$ using high resolution Compton scattering and positron annihilation spectroscopies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bulk Fermi surface and momentum density in heavily doped La$_{2-x}$Sr$_x$CuO$_4$ using high resolution Compton scattering and positron annihilation spectroscopies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-144796