TY - JOUR
T1 - Superconductivity in silicon based barium-inclusion clathrates
AU - Herrmann, Rüdiger F.W.
AU - Tanigaki, Katsumi
AU - Kuroshima, Sadanori
AU - Suematsu, Hiroyoshi
N1 - Funding Information:
The authors would like to thank Prof. O. Zhou for fruitful discussions. The project was partly funded by The Japan Society for the Promotion of Science (MIRAIKAITAKU-Project).
PY - 1998/1/30
Y1 - 1998/1/30
N2 - Clathrates of type Ba8TMxSi46-x (with TM = Au, Ag, Cu) have been investigated. We report on superconductivity in Ba-inclusion silicon based clathrates when doped with transition metals. It is clarified that the transition metals are necessary in order to form the clathrates as major phases, but they destroy the superconductivity. On lowering the amount of TM, an increase in superconducting fraction has been observed, with a maximum at x≈1. After purification a superconducting fraction of up to 50% was obtained. The critical temperatures range from 5 to 6 K depending on both, x and the type of TM.
AB - Clathrates of type Ba8TMxSi46-x (with TM = Au, Ag, Cu) have been investigated. We report on superconductivity in Ba-inclusion silicon based clathrates when doped with transition metals. It is clarified that the transition metals are necessary in order to form the clathrates as major phases, but they destroy the superconductivity. On lowering the amount of TM, an increase in superconducting fraction has been observed, with a maximum at x≈1. After purification a superconducting fraction of up to 50% was obtained. The critical temperatures range from 5 to 6 K depending on both, x and the type of TM.
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U2 - 10.1016/S0009-2614(97)01324-9
DO - 10.1016/S0009-2614(97)01324-9
M3 - Article
AN - SCOPUS:0032579041
VL - 283
SP - 29
EP - 32
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 1-2
ER -