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Quantum spin liquids

A flood or a trickle?

Many have reported evidence for a quantum spin liquid state — in which quantum fluctuations prevent spin order — but thermodynamic evidence has been lacking, until now. Although it points the way, is it enough?

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Figure 1: A fit of the specific heat data of Yamashita et al. to two different models.


  1. Anderson, P. W. Mater. Res. Soc. Bull. 8, 153–160 (1973).

    Article  Google Scholar 

  2. Shastry, B. S. & Sutherland, B. Physica B 108, 1069–1070 (1981).

    Article  Google Scholar 

  3. Yamashita, S. et al. Nature Physics 4, 459–462 (2008).

    ADS  Article  Google Scholar 

  4. Shimizu, Y., Miyagawa, K., Kanoda, K., Maesato, M. & Saito, G. Phys. Rev. Lett. 91, 1007001 (2003).

    Google Scholar 

  5. Anderson, P. W. Science 235, 1196–1198 (1987).

    ADS  Article  Google Scholar 

  6. Motrunich, O. I. Phys. Rev. B 72, 045105 (2005).

    ADS  Article  Google Scholar 

  7. Lee, S.-S., Lee, P. A. & Senthil, T. Phys. Rev. Lett. 98, 067006 (2007).

    ADS  Article  Google Scholar 

  8. Schiffer, P., Ramirez, A. P., Huse, D. A. & Valentino, A. J. Phys. Rev. Lett. 73, 2500–2503 (1994).

    ADS  Article  Google Scholar 

  9. Ryu, S., Motrunich, O. I., Alicea, J. & Fisher, M. P. A. Phys. Rev. B 75, 184406 (2007).

    ADS  Article  Google Scholar 

  10. Ran Y., Hermele, M., Lee, P. A. & Wen, X.-G. Phys. Rev. Lett. 98, 117205 (2007).

    ADS  Article  Google Scholar 

  11. Nakatsuji, S. et al. Science 309, 1697–1700 (2005).

    ADS  Article  Google Scholar 

  12. Kimura, T. et al. Nature 426, 55–58 (2003).

    ADS  Article  Google Scholar 

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Ramirez, A. A flood or a trickle?. Nature Phys 4, 442–443 (2008).

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