Abstract
The -axis far-infrared reflectivity spectra in the superconducting state were investigated for . The Josephson plasma edge rapidly shifts towards lower frequency with increasing , and almost disappears when exceeds a critical value above which the low-temperature-tetragonal (LTT) deformation switches on, stabilizing the spin/charge ordered stripe phase. In the vicinity of , a “normal state” reentrant behavior was observed with lowering temperature below . This clearly demonstrates that the static stripe order pinned by the LTT distortion suppresses the interlayer phase coherence.
- Received 14 June 2000
DOI:https://doi.org/10.1103/PhysRevLett.86.500
©2001 American Physical Society