Physics: Spin disorder on a triangular lattice

Satoru Nakatsuji, Yusuke Nambu, Hiroshi Tonomura, Osamu Sakai, Seth Jonas, Collin Broholm, Hirokazu Tsunetsugu, Yiming Qiu, Yoshiteru Maeno

Research output: Contribution to journalArticle

350 Citations (Scopus)

Abstract

As liquids crystallize into solids on cooling, spins in magnets generally form periodic order. However, three decades ago, it was theoretically proposed that spins on a triangular lattice form a liquidlike disordered state at low temperatures. Whether or not a spin liquid is stabilized by geometrical frustration has remained an active point of inquiry ever since. Our thermodynamic and neutron measurements on NiGa2S4, a rare example of a two-dimensional triangular lattice antiferromagnet, demonstrate that geometrical frustration stabilizes a low-temperature spin-disordered state with coherence beyond the two-spin correlation length. Spin liquid formation may be an origin of such behavior.

Original languageEnglish
Pages (from-to)1697-1700
Number of pages4
JournalScience
Volume309
Issue number5741
DOIs
Publication statusPublished - 2005 Sep 9

ASJC Scopus subject areas

  • General

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    Nakatsuji, S., Nambu, Y., Tonomura, H., Sakai, O., Jonas, S., Broholm, C., Tsunetsugu, H., Qiu, Y., & Maeno, Y. (2005). Physics: Spin disorder on a triangular lattice. Science, 309(5741), 1697-1700. https://doi.org/10.1126/science.1114727