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Alkali-Fulleride Superconductors: Synthesis, Composition, and Diamagnetic Shielding
Abstract
The recent report of a superconductivity onset near the critical temperature T c = 18 K in potassium-doped C 60 raises questions concerning the composition and stability of the superconducting phase. The effects of mixing and heat treatment of K χ C 60 samples prepared over a wide range of initial compositions on the superconducting transition was determined from shielding diamagnetism measurements. A single superconducting phase ( T c = 19.3 K) occurs for which the composition is K 3 C 60 . The shielding reaches a maximum of greater than 40 percent of the perfect diamagnetism, a high value for a powder sample, in samples prepared from 3:1 mixtures. A Rb χ C 60 sample prepared and analyzed in an analogous way exhibited evidence for superconductivity with T c = 30 K and a diamagnetic shielding of 7 percent could be obtained.
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Citations
Cited by
Superconductivity in fullerides
Gunnarsson, O. (1997) · Reviews of Modern Physics · doi:10.1103/revmodphys.69.575 · Cited by 991
Superconductivity at 33 K in CsxRbyC60
Tanigaki, K., Ebbesen, T. W., Saito, S., Mizuki, J., Tsai, J. S., Kubo, Y., & Kuroshima, S. (1991) · Nature · doi:10.1038/352222a0 · Cited by 939
Possible light-induced superconductivity in K3C60 at high temperature
Mitrano, M., Cantaluppi, A., Nicoletti, D., Kaiser, S., Perucchi, A., Lupi, S., Di Pietro, P., Pontiroli, D., Riccò, M., Clark, S. R., et al. (2016) · Nature · doi:10.1038/nature16522 · Cited by 815
Structure of single-phase superconducting K3C60
Stephens, P. W., Mihaly, L., Lee, P. L., Whetten, R. L., Huang, S.-M., Kaner, R., Deiderich, F., & Holczer, K. (1991) · Nature · doi:10.1038/351632a0 · Cited by 734
Self-citationAlexandrov, A. S., & Mott, N. F. (1994) · Reports on Progress in Physics · doi:10.1088/0034-4885/57/12/001 · Cited by 412
Metadata
- Authors
- Holczer, K., Klein, O., Huang, S.-M., Kaner, R. B., Fu, K.-J., Whetten, R. L., & Diederich, F.
- Venue
- Science
- Published
- 1991-05-24
- Volume
- 252
- Issue
- 5009
- Pages
- 1154-1157
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2080251279
- Cited by
- 759
- References
- 0
- FWCI
- 137.25
- Type
- journal article
- Language
- en
- Open access
- closed
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- Holczer, K., Klein, O., Huang, S.-M., Kaner, R. B., Fu, K.-J., Whetten, R. L., & Diederich, F. (1991). Alkali-Fulleride Superconductors: Synthesis, Composition, and Diamagnetic Shielding. Science. https://doi.org/10.1126/science.252.5009.1154
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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