Direct observation of a structural-fluctuation enhancement in a superconducting state of Tl2Ba2Ca2Cu3O10 by electron diffraction
Y. Koyama, S.-I. Nakamura, Y. Inoue, T. Ohno
DOI 10.1103/PhysRevB.46.5757 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Features of temperature-dependent diffuse scattering showing a structural fluctuation in Tl2Ba2Ca2Cu3O10 have been investigated in detail in a temperature range between about 20 K and room temperature by means of electron diffraction. As the temperature is lowered, the intensity of diffuse scattering increases remarkably below about 130 K, which is taken to be the onset temperature of superconductivity. Because the scattering is obviously due to a structural fluctuation, Tl2Ba2Ca2Cu3O10 is understood to exhibit an enhancement of the fluctuation in a superconducting state. In addition, a careful analysis of the features in the scattering suggests that a dynamic displacement of an apical O atom in the CuO5 pyramid along the c axis is responsible for the structural fluctuation in the superconducting state.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Tl2Ba2Ca2Cu3O10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 130 | Pressure not reported | onset |
| Tl2Ba2Ca2Cu3O10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 117 | Pressure not reported | zero_resistance |
Similar papers
Relationship between crystal chemistry and the local structure and electronic properties of Tl2Ba2Ca2Cu3O10 superconductors determined by scanning tunneling microscopy and spectroscopy
similarity 0.97Zhe Zhang et al.
Source status unknown — claims are unverified
Structure refinements of superconducting Tl2Ba2CaCu2 O8 and Tl2Ba2Ca2 Cu3O10 from neutron diffraction data
similarity 0.96D. E. Cox et al.
Source status unknown — claims are unverified
Anomalous behavior of phonons in superconducting Tl2Ba2Ca2Cu3O10 detected by far-infrared spectroscopy
similarity 0.96T. Zetterer et al.
Source status unknown — claims are unverified
Soft-x-ray-absorption studies of Tl2Ba2Ca2Cu3O10−δ high-Tc superconductors
similarity 0.96A. Krol et al.
Source status unknown — claims are unverified
Tunneling measurements of the energy gap in the high-Tc superconductor Tl2Ba2Ca2Cu3O10+δ
similarity 0.95S. Vieira et al.
Source status unknown — claims are unverified
100-K superconducting phases in the Tl-Ca-Ba-Cu-O system
similarity 0.95R. M. Hazen et al.
Source status unknown — claims are unverified