Lead-mercury-based superconductors. The 1212 cuprate Pb0.7 Hg0.3 Sr2+x Ca0.7 Nd0.3-x Cu2 O7-δ and the new oxycarbonate Pb0.7 Hg0.3 Sr4 Cu2 CO3 O7
Publication type: Journal Article
Publication date: 1994-03-01
scimago Q3
wos Q4
SJR: 0.313
CiteScore: 2.4
Impact factor: 1.0
ISSN: 09214534, 18732143
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Energy Engineering and Power Technology
Abstract
Abstract A new superconducting mercury oxycarbonate, Pb 0.7 Hg 0.3 Sr 4 Cu 2 CO 3 O 7 , has been synthesized. This tetragonal phase ( a=3.824 A , c=16.468 A ) consists of an intergrowth of two nonsuperconducting compounds, Sr 2 CuO 2 CO 3 and Pb 0.7 Hg 0.3 Sr 2 CuO 5 . It exhibits after optimization a critical temperature of 70 K, with a sharp transition and a superconducting volume fraction of 50%. Its behavior can be compared to that of thallium oxycarbonates previously isolated. This study is completed by a reinvestigation of the 1212 cuprate of the system Hg-Pb-Sr-Ca-Nd-Cu. A superconducting phase with the 1212 structure, similar to that previously obtained but with a significantly different composition, Pb 0.7 Hg 0.3 Sr 2+ x Ca 0.7 Nd 0.3- x Cu 2 O 7 , has been obtained, with a T c onset of 100 K. The behavior of the latter is compared with other lead-based 1212 cuprates.
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Christopher Martin C. et al. Lead-mercury-based superconductors. The 1212 cuprate Pb0.7Hg0.3Sr2+xCa0.7Nd0.3-xCu2O7-δ and the new oxycarbonate Pb0.7Hg0.3Sr4Cu2CO3O7 // Physica C: Superconductivity and its Applications. 1994. Vol. 222. No. 1-2. pp. 19-26.
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Christopher Martin C., Hervieu M., Huvé M., Michel C., Maignan A., Van Tendeloo G., Raveau B. Lead-mercury-based superconductors. The 1212 cuprate Pb0.7Hg0.3Sr2+xCa0.7Nd0.3-xCu2O7-δ and the new oxycarbonate Pb0.7Hg0.3Sr4Cu2CO3O7 // Physica C: Superconductivity and its Applications. 1994. Vol. 222. No. 1-2. pp. 19-26.
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TY - JOUR
DO - 10.1016/0921-4534(94)90109-0
UR - https://doi.org/10.1016/0921-4534(94)90109-0
TI - Lead-mercury-based superconductors. The 1212 cuprate Pb0.7Hg0.3Sr2+xCa0.7Nd0.3-xCu2O7-δ and the new oxycarbonate Pb0.7Hg0.3Sr4Cu2CO3O7
T2 - Physica C: Superconductivity and its Applications
AU - Christopher Martin, Christopher
AU - Hervieu, M.
AU - Huvé, M.
AU - Michel, C
AU - Maignan, Antoine
AU - Van Tendeloo, G.
AU - Raveau, B.
PY - 1994
DA - 1994/03/01
PB - Elsevier
SP - 19-26
IS - 1-2
VL - 222
SN - 0921-4534
SN - 1873-2143
ER -
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@article{1994_Christopher Martin,
author = {Christopher Christopher Martin and M. Hervieu and M. Huvé and C Michel and Antoine Maignan and G. Van Tendeloo and B. Raveau},
title = {Lead-mercury-based superconductors. The 1212 cuprate Pb0.7Hg0.3Sr2+xCa0.7Nd0.3-xCu2O7-δ and the new oxycarbonate Pb0.7Hg0.3Sr4Cu2CO3O7},
journal = {Physica C: Superconductivity and its Applications},
year = {1994},
volume = {222},
publisher = {Elsevier},
month = {mar},
url = {https://doi.org/10.1016/0921-4534(94)90109-0},
number = {1-2},
pages = {19--26},
doi = {10.1016/0921-4534(94)90109-0}
}
Cite this
MLA
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Christopher Martin, Christopher, et al. “Lead-mercury-based superconductors. The 1212 cuprate Pb0.7Hg0.3Sr2+xCa0.7Nd0.3-xCu2O7-δ and the new oxycarbonate Pb0.7Hg0.3Sr4Cu2CO3O7.” Physica C: Superconductivity and its Applications, vol. 222, no. 1-2, Mar. 1994, pp. 19-26. https://doi.org/10.1016/0921-4534(94)90109-0.