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Anomalous thermal and NMR behavior of liquid 3He in contact with an antiferromagnet

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Anomalous thermal and NMR behavior has been observed in liquid 3He in contact with a single crystal of Cu(NH3)4 · SO4 · H2O, which is a magnetically one-dimensional substance. In the presence of a temperature gradient in the vertical direction and parallel to the crystal surface, the temperature of the system and the 3He NMR signal change abruptly at a temperature just above the antiferromagnetic transition temperature of the salt (0·43 K). From the experimental results it is suggested that at the onset of the anomaly the spin-lattice relaxation time of 3He is reduced and a flow is induced in liquid 3He near the surface of the crystal.

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Authors and Affiliations

  1. The Research Institute for Iron, Steel, and Other Metals, Tohoku University, Katahira, Sendai, Japan

    Sinhachiro Saito

  2. The Institute for Solid State Physics, The University of Tokyo, Roppongi, Minato-ku, Tokyo, Japan

    KŌzŌ Satoh & Tadashi Sugawara

Authors
  1. Sinhachiro Saito
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  2. KŌzŌ Satoh
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  3. Tadashi Sugawara
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Additional information

This work was supported by a Research Grant of the Iwatani Naoji Foundation and a Grant-in-Aid for Scientific Research (Japan).

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Saito, S., Satoh, K. & Sugawara, T. Anomalous thermal and NMR behavior of liquid 3He in contact with an antiferromagnet. J Low Temp Phys 41, 157–167 (1980). https://doi.org/10.1007/BF00117235

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  • DOI: https://doi.org/10.1007/BF00117235

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