Anomalous anharmonicity in doped cuprate superconductors

Physics – Condensed Matter

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

15 pages, 1 figure, submitted to Physica B

Scientific paper

Strong nonlinear elastic effects arise due to the Lifshitz transition associated with a change in the Fermi surface topology. It is shown that an electronic contribution to the elastic characteristics of cuprates becomes important if the chemical potential is near but not too near the Van Hove critical energy $\epsilon_c$. In the case of a saddle point singularity in the energy spectrum an enhancement factor arises for the "electronic" anharmonic constants of the 3rd and 4th order, that is proportional to $\epsilon_F/(\epsilon_F-\epsilon_c)$ to the 1st and 2nd power, respectively. The behaviour of the Grueneisen coefficient in the vicinity of the Lifshitz transition is considered.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Anomalous anharmonicity in doped cuprate superconductors 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 Anomalous anharmonicity in doped cuprate superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anomalous anharmonicity in doped cuprate superconductors will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-59466

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.