Two-dimensional electrons on the surface of an electride are found to exhibit a phase transition from a normal Fermi liquid to an interesting quantum liquid, which is probably a quantum version of an electronic crystal beyond the melting point.
This is a preview of subscription content, access via your institution
Access options
Access Nature and 54 other Nature Portfolio journals
Get Nature+, our best-value online-access subscription
$29.99 per month
cancel any time
Subscribe to this journal
Receive 12 print issues and online access
$259.00 per year
only $21.58 per issue
Rent or buy this article
Get just this article for as long as you need it
$39.95
Prices may be subject to local taxes which are calculated during checkout

References
Miyakawa, M. et al. J. Am. Chem. Soc. 129, 7270–7271 (2007).
Lee, K. et al. Nature 494, 336–340 (2013).
Lee, S. Y. et al. Nat. Commun. 11, 1526 (2020).
Kim, S. et al. Nat. Mater. https://doi.org/10.1038/s41563-022-01353-8 (2022).
Wigner, E. Phys. Rev. 46, 1002–1011 (1934).
Grimes, C. C. & Adams, G. Phys. Rev. Lett. 42, 795–798 (1979).
Clark, B. K., Casula, M. & Ceperley, D. M. Phys. Rev. Lett. 103, 055701 (2009).
Spivak, B. & Kivelson, S. A. Phys. Rev. B 70, 155114 (2004).
Ohtomo, A. & Hwang, H. Y. Nature 427, 423–426 (2004).
Takada, Y. J. Phys. Soc. Jpn 78, 013703 (2009).
Hirayama, M. et al. Phys. Rev. B 101, 075107 (2020).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Competing interests
The author declares no competing interests.
Rights and permissions
About this article
Cite this article
Fujimori, A. Electride surface hosts Wigner-crystal melting. Nat. Mater. 21, 1217–1218 (2022). https://doi.org/10.1038/s41563-022-01382-3
Published:
Issue Date:
DOI: https://doi.org/10.1038/s41563-022-01382-3