Competition and coexistence of bond and charge orders in (TMTTF)2AsF6

Physics – Condensed Matter – Strongly Correlated Electrons

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4 pages, 5 figures

Scientific paper

10.1103/PhysRevB.66.081103

(TMTTF)2AsF6 undergoes two phase transitions upon cooling from 300 K. At Tco=103 K a charge-ordering (CO) occurs, and at Tsp(B=9 T)=11 K the material undergoes a spin-Peierls (SP) transition. Within the intermediate, CO phase, the charge disproportionation ratio is found to be at least 3:1 from carbon-13 NMR 1/T1 measurements on spin-labeled samples. Above Tsp, up to about 3Tsp, 1/T1 is independent of temperature, indicative of low-dimensional magnetic correlations. With the application of about 0.15 GPa pressure, Tsp increases substantially, while Tco is rapidly suppressed, demonstrating that the two orders are competing. The experiments are compared to results obtained from calculations on the 1D extended Peierls-Hubbard model.

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

Competition and coexistence of bond and charge orders in (TMTTF)2AsF6 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 Competition and coexistence of bond and charge orders in (TMTTF)2AsF6, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Competition and coexistence of bond and charge orders in (TMTTF)2AsF6 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-231991

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