Superconductivity in lithium below 0.4 millikelvin at ambient pressure

Juha Tuoriniemi (), Kirsi Juntunen-Nurmilaukas, Johanna Uusvuori, Elias Pentti, Anssi Salmela and Alexander Sebedash
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Juha Tuoriniemi: Low Temperature Laboratory, Helsinki University of Technology, PO Box 2200, FI-02015 TKK, Finland
Kirsi Juntunen-Nurmilaukas: Low Temperature Laboratory, Helsinki University of Technology, PO Box 2200, FI-02015 TKK, Finland
Johanna Uusvuori: Low Temperature Laboratory, Helsinki University of Technology, PO Box 2200, FI-02015 TKK, Finland
Elias Pentti: Low Temperature Laboratory, Helsinki University of Technology, PO Box 2200, FI-02015 TKK, Finland
Anssi Salmela: Low Temperature Laboratory, Helsinki University of Technology, PO Box 2200, FI-02015 TKK, Finland
Alexander Sebedash: Low Temperature Laboratory, Helsinki University of Technology, PO Box 2200, FI-02015 TKK, Finland

Nature, 2007, vol. 447, issue 7141, 187-189

Abstract: Lithium acting naturally Superconductivity occurs in most metals at low temperatures. Some simple systems, however, appear to disfavour this state. An intriguing example is lithium metal. Compressed lithium superconducts at up to 20 K, one of the highest transition temperatures for an element. Natural lithium appeared not to act as a superconductor, but now superconductivity has been observed at ambient pressure in natural lithium with an extremely low transition temperature of 0.4 millikelvin. This means that lithium could be useful for the study of superconductivity, as its simplicity makes it well suited to theoretical investigations.

Date: 2007
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DOI: 10.1038/nature05820

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