Optical phonons of superconducting infinite-layer compounds Sr_{0.9}Ln_{0.1}CuO_2 (Ln = La, Gd, Sm)

Details Optical phonons of superconducting infinite-layer compounds Sr_{0.9}Ln_{0.1}CuO_2 (Ln = La, Gd, Sm) Optical phonons of superconducting infinite-layer compounds Sr_{0.9}Ln_{0.1}CuO_2 (Ln = La, Gd, Sm)

2001-04-19

arxiv.org/abs/cond-mat/0104352v1

Physics

Condensed Matter

Superconductivity

6page, 3 eps figures, 1 table

Scientific paper

10.1016/S0921-4534(01)00867-X

We have identifies the otical phonon modes of the superconducting infinite-layer compounds Sr$_{0.9}Ln_{0.1}$CuO$_2$ ($Ln$ = La, Gd, Sm; $T_c$ = 43 K for all) from their infrared reflectivity spectra obtained with a Fourier-transform infrared spectrometer on high-quality high-purity samples synthesized under high pressure. The La- and the Gd-doped compounds exhibited only four (2$A_{\rm 2u}$+2$E_{\rm u}$) out of the five (2$A_{\rm 2u}$+3$E_{\rm u}$) infrared-active phonon modes predicted by a group theoretical analysis whereas the Sm-doped compound exhibited all five modes. We propose the atomic displacement pattern for each phonon mode based on reported lattice dynamics calculations and through comparison with the phonon modes of other single-layer high-$T_{\rm c}$ cuprate superconductors.

Affiliated with

Also associated with

No associations

Rating

Optical phonons of superconducting infinite-layer compounds Sr_{0.9}Ln_{0.1}CuO_2 (Ln = La, Gd, Sm) 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 Optical phonons of superconducting infinite-layer compounds Sr_{0.9}Ln_{0.1}CuO_2 (Ln = La, Gd, Sm), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical phonons of superconducting infinite-layer compounds Sr_{0.9}Ln_{0.1}CuO_2 (Ln = La, Gd, Sm) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-140724