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Low temperature magnetic measurements of NENP

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Abstract

The temperature dependent magnetic susceptibility, χ(T), of two samples of the S=1 linear-chain Heisenberg antiferromagnet Ni(C2H8N2)2NO2(ClO4), known as NENP, has been measured from 400 K to 264 µK. Our measurements are in agreement with existing results of other researchers who worked above 1.2 K. Below 1.2 K, χ(T) increases with decreasing temperature. The results suggest that this increase is intrinsic to the NENP and is not a consequence of a single source of paramagnetic impurities in the samples.

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Author notes

  1. O. Avenel

    Present address: SPEC, CE-Saclay, 91191, Gif- sur-Yvette Cedex, France

  2. C. M. C. M. van Woerkens

    Present address: Kamerlingh Onnes Laboratorium, 2300 RA, Leiden, The Netherlands

Authors and Affiliations

  1. Department of Physics and Center for Ultra-Low Temperature Research, University of Florida, 215 Williamson Hall, 32611, Gainesville, FL

    O. Avenel, J. Xu, J. S. Xia, M-F. Xu, B. Andraka, T. Lang, P. L. Moyland, W. Ni, P. J. C. Signore, C. M. C. M. van Woerkens, E. D. Adams, G. G. Ihas, M. W. Meisel, S. E. Nagler, N. S. Sullivan & Y. Takano

  2. Department of Chemistry, University of Florida, 200 Leigh Hall, 32611, Gainesville, FL

    D. R. Talham

  3. Department of Physics, College of Liberal Arts and Sciences, Kyoto University, 606, Kyoto, Japan

    T. Goto

  4. Department of Physics, Faculty of Sciences, Kyoto University, 606, Kyoto, Japan

    N. Fujiwara

Authors
  1. O. Avenel
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  2. J. Xu
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  3. J. S. Xia
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  4. M-F. Xu
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  5. B. Andraka
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  6. T. Lang
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  7. P. L. Moyland
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  8. W. Ni
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  9. P. J. C. Signore
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  10. C. M. C. M. van Woerkens
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  11. E. D. Adams
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  12. G. G. Ihas
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  13. M. W. Meisel
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  14. S. E. Nagler
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  15. N. S. Sullivan
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  16. Y. Takano
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  17. D. R. Talham
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  18. T. Goto
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  19. N. Fujiwara
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Scientific Instruments Graduate Student Fellow

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Avenel, O., Xu, J., Xia, J.S. et al. Low temperature magnetic measurements of NENP. J Low Temp Phys 89, 547–550 (1992). https://doi.org/10.1007/BF00694084

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  • DOI: https://doi.org/10.1007/BF00694084

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