Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Published Online October 17, 2002
Science DOI: 10.1126/science.1078535

Reports

Submitted on September 18, 2002
Accepted on October 7, 2002

Superconductivity in Dense Lithium

Viktor V. Struzhkin 1*, Mikhail I. Eremets 2, Wei Gan 3, Ho-kwang Mao 1, Russell J. Hemley 1

1 Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Rd, NW, Washington, DC 20015, USA.
2 Max Planck Institut für Chemie, Postfach 3060, 55020 Mainz, Germany.
3 Geophysical Laboratory, Carnegie Institution of Washington , 5251 Broad Branch Rd, NW, Washington, DC 20015, USA; Thomas S. Wootton High School, Rockville, MD 20850, USA.

* To whom correspondence should be addressed. E-mail: struzhkin{at}gl.ciw.edu.

Superconductivity in compressed lithium is observed by magnetic susceptibility and electrical resistivity measurements. A superconducting critical temperature Tc is found ranging from 9 K to 16 K at 23 GPa to 80 GPa. The pressure dependence of Tc suggests multiple phase transitions, consistent with theoretical predictions and reported X-ray diffraction results. The observed values for Tc are much lower than those theoretically predicted indicating that more sophisticated theoretical treatments similar to those proposed for metallic hydrogen may be required to understand superconductivity in dense phases of lithium.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Structural Diversity of Sodium.
E. Gregoryanz, L. F. Lundegaard, M. I. McMahon, C. Guillaume, R. J. Nelmes, and M. Mezouar (2008)
Science 320, 1054-1057
   Abstract »    Full Text »    PDF »
From the Cover: Pressure-induced metallization of silane.
X.-J. Chen, V. V. Struzhkin, Y. Song, A. F. Goncharov, M. Ahart, Z. Liu, H.-k. Mao, and R. J. Hemley (2008)
PNAS 105, 20-23
   Abstract »    Full Text »    PDF »
Shock-Induced Localized Amorphization in Boron Carbide.
M. Chen, J. W. McCauley, and K. J. Hemker (2003)
Science 299, 1563-1566
   Abstract »    Full Text »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)