Abstract
Thermal expansion measurements have been carried out for the Zn-substituted compounds Y1 Ba2 (Cu1-xZn x)3Oy (0 ≤ x ≤ 4%) with a high-resolution dilatometer using the three terminal capacitance technique. The present setup is sensitive enough to detect changes in a of about 10 -8 K-1. Results indicate that the jump δα in the coefficient of linear thermal expansion decreases with an increase in Zn content. For x = 1 %, δα decreases by a factor of about five whereas the oxygen content and transition temperature do not change appreciably. There is strong evidence that the temperature dependences of α for compounds with high Zn concentration depend on the conditions of sample growth.
| Original language | English |
|---|---|
| Pages (from-to) | 1439-1445 |
| Number of pages | 7 |
| Journal | Journal of Physics Condensed Matter |
| Volume | 16 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 03-03-2004 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
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Influence of Zn doping on the thermal expansion of the high Tc superconductor Y1Ba2Cu3Oy. / Rao, Ashok.
In: Journal of Physics Condensed Matter, Vol. 16, No. 8, 03.03.2004, p. 1439-1445.Research output: Contribution to journal › Article
TY - JOUR
T1 - Influence of Zn doping on the thermal expansion of the high Tc superconductor Y1Ba2Cu3Oy
AU - Rao, Ashok
PY - 2004/3/3
Y1 - 2004/3/3
N2 - Thermal expansion measurements have been carried out for the Zn-substituted compounds Y1 Ba2 (Cu1-xZn x)3Oy (0 ≤ x ≤ 4%) with a high-resolution dilatometer using the three terminal capacitance technique. The present setup is sensitive enough to detect changes in a of about 10 -8 K-1. Results indicate that the jump δα in the coefficient of linear thermal expansion decreases with an increase in Zn content. For x = 1 %, δα decreases by a factor of about five whereas the oxygen content and transition temperature do not change appreciably. There is strong evidence that the temperature dependences of α for compounds with high Zn concentration depend on the conditions of sample growth.
AB - Thermal expansion measurements have been carried out for the Zn-substituted compounds Y1 Ba2 (Cu1-xZn x)3Oy (0 ≤ x ≤ 4%) with a high-resolution dilatometer using the three terminal capacitance technique. The present setup is sensitive enough to detect changes in a of about 10 -8 K-1. Results indicate that the jump δα in the coefficient of linear thermal expansion decreases with an increase in Zn content. For x = 1 %, δα decreases by a factor of about five whereas the oxygen content and transition temperature do not change appreciably. There is strong evidence that the temperature dependences of α for compounds with high Zn concentration depend on the conditions of sample growth.
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U2 - 10.1088/0953-8984/16/8/024
DO - 10.1088/0953-8984/16/8/024
M3 - Article
VL - 16
SP - 1439
EP - 1445
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
SN - 0953-8984
IS - 8
ER -