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.
| Original language | English |
|---|---|
| Pages (from-to) | 5757-5759 |
| Number of pages | 3 |
| Journal | Physical Review B |
| Volume | 46 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 1992 |
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ASJC Scopus subject areas
- Condensed Matter Physics
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Direct observation of a structural-fluctuation enhancement in a superconducting state of Tl2Ba2Ca2Cu3O10 by electron diffraction. / Koyama, Yasumasa; Nakamura, S. I.; Inoue, Y.; Ohno, T.
In: Physical Review B, Vol. 46, No. 9, 1992, p. 5757-5759.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Direct observation of a structural-fluctuation enhancement in a superconducting state of Tl2Ba2Ca2Cu3O10 by electron diffraction
AU - Koyama, Yasumasa
AU - Nakamura, S. I.
AU - Inoue, Y.
AU - Ohno, T.
PY - 1992
Y1 - 1992
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevB.46.5757
DO - 10.1103/PhysRevB.46.5757
M3 - Article
VL - 46
SP - 5757
EP - 5759
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 9
ER -