GAJIC, R and SCHUTZMANN, J and BETZ, J and ZETTERER, T and OTTO, HH and OBERMAYER, PE and RENK, KF (1991) PRONOUNCED PHONON SOFTENING IN THE FAR INFRARED-SPECTRA OF YBA2(CU1-XZNX)3O7. SOLID STATE COMMUNICATIONS, 78 (1). pp. 65-68. ISSN 0038-1098,
Full text not available from this repository.Abstract
We report on measurements of the FAR-IR reflection spectra of the YBa2(Cu1-xZnx)3O7-y (y congruent-to 0) ceramics for different Zn concentrations (x = 0.01, 0.03 and 0.5) and temperatures. All spectra show a pronounced phonon softening of the 291 cm-1 mode for cooling of the samples from 300 to 10 K. The largest frequency shift of 12 cm-1 is observed for x = 0.01. We attribute this increase of the phonon softening to the suppression of screening caused by Zn doping.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BA-CU-O; SUPERCONDUCTIVITY; ZN; YBA2CU3O7-DELTA; SUBSTITUTION; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/55048 |
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