Journal
PHYSICAL REVIEW B
Volume 66, Issue 13, Pages -Publisher
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevB.66.134528
Keywords
-
Ask authors/readers for more resources
Single-crystal x-ray-diffraction measurements have been carried out on Cd(2)Re(2)O(7)near and below the phase transition it exhibits at T(C')similar to195 K. Cd2Re2O7 was recently discovered as the first, and to date only, superconductor that displays the cubic pyrochlore structure at room temperature. Superlattice Bragg peaks show an apparently continuous structural transition at T-C', however, their behavior is unconventional. The evolution with temperature of these Bragg intensities show anomalously strong temperature dependence at low temperatures, where it falls off as I-0(1 - BT2), and resolution limited critical-like scattering is seen above T-C'. High-resolution measurements show that the high-temperature cubic Bragg peaks split on entering the low-temperature phase, indicating a (likely tetragonal) lowering of symmetry below T-C'.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available