Abstract
The variation in the average and local structure of the superconductor family Y1-xCaxSr2Cu2GaO7 as calcium is substituted for yttrium (x = 0.20, 0.35, and 0.40) is presented and discussed. Electron microscopy and X-ray diffraction were the primary techniques employed. The local structure found by the use of electron microscopy and X-ray diffraction agrees with that previously derived from single crystal X-ray and neutron diffraction. The gallate can be confused with the three layer perovskite structure of YBCO (YBa2Cu3O7) because of the similarity of [011]Ga≈[100]YBCO and [010]Ga≈[110]YBCO zones. However, the composition of all crystals examined were homogeneous on a 10-100 nm scale. It was also found that the twin structure varied as a function of the calcium content.
| Original language | English |
|---|---|
| Pages (from-to) | 51-60 |
| Number of pages | 10 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 202 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - Nov 1 1992 |
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ASJC Scopus subject areas
- Condensed Matter Physics
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Local structure of Y1-xCaxSr2Cu2GaO7 superconductors. / Zhang, J. P.; Groenke, D. A.; Zhang, H.; DeLoach, D. I.; Dabrowski, B.; Poeppelmeier, Kenneth R; Dravid, V. P.; Marks, L. D.
In: Physica C: Superconductivity and its Applications, Vol. 202, No. 1-2, 01.11.1992, p. 51-60.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Local structure of Y1-xCaxSr2Cu2GaO7 superconductors
AU - Zhang, J. P.
AU - Groenke, D. A.
AU - Zhang, H.
AU - DeLoach, D. I.
AU - Dabrowski, B.
AU - Poeppelmeier, Kenneth R
AU - Dravid, V. P.
AU - Marks, L. D.
PY - 1992/11/1
Y1 - 1992/11/1
N2 - The variation in the average and local structure of the superconductor family Y1-xCaxSr2Cu2GaO7 as calcium is substituted for yttrium (x = 0.20, 0.35, and 0.40) is presented and discussed. Electron microscopy and X-ray diffraction were the primary techniques employed. The local structure found by the use of electron microscopy and X-ray diffraction agrees with that previously derived from single crystal X-ray and neutron diffraction. The gallate can be confused with the three layer perovskite structure of YBCO (YBa2Cu3O7) because of the similarity of [011]Ga≈[100]YBCO and [010]Ga≈[110]YBCO zones. However, the composition of all crystals examined were homogeneous on a 10-100 nm scale. It was also found that the twin structure varied as a function of the calcium content.
AB - The variation in the average and local structure of the superconductor family Y1-xCaxSr2Cu2GaO7 as calcium is substituted for yttrium (x = 0.20, 0.35, and 0.40) is presented and discussed. Electron microscopy and X-ray diffraction were the primary techniques employed. The local structure found by the use of electron microscopy and X-ray diffraction agrees with that previously derived from single crystal X-ray and neutron diffraction. The gallate can be confused with the three layer perovskite structure of YBCO (YBa2Cu3O7) because of the similarity of [011]Ga≈[100]YBCO and [010]Ga≈[110]YBCO zones. However, the composition of all crystals examined were homogeneous on a 10-100 nm scale. It was also found that the twin structure varied as a function of the calcium content.
UR - http://www.scopus.com/inward/record.url?scp=0026953425&partnerID=8YFLogxK
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U2 - 10.1016/0921-4534(92)90295-N
DO - 10.1016/0921-4534(92)90295-N
M3 - Article
VL - 202
SP - 51
EP - 60
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 1-2
ER -