Low temperature specific heat measurements of the spin ice material Dy$_2$Ti$_2$O$_7$

ORAL

Abstract

Recent work on low temperature magnetization [1] and ac-susceptibility [2] of the spin ice Dy$_2$Ti$_2$O$_7$ has revealed a number of inconsistencies with earlier magneto-caloric [3] and thermal relaxation [4] measurements. These unsolved puzzles have motivated us to re-investigate the low temperature specific heat of this material. By measuring the thermal relaxation of Dy$_2$Ti$_2$O$_7$, we extract magnetic spin relaxation times and compare them to previous results in the literature.\\[4pt] [1] K. Matsuhira, et al., J. Phys. Cond. Mat. 13, L737 (2001) \\[0pt] [2] L. R. Yaraskavitch et al., Phys. Rev. B 85, 020410(R) (2012) \\[0pt] [3] M. Orendac, et al., Phys. Rev. B 75, 104425 (2007) \\[0pt] [4] B. Klemke, et al., J. Low Temp. Phys. 163, 345 (2011)

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Authors

  • D. Pomaranski

    • Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1

  • L.R. Yaraskavitch

    • University of Waterloo

  • S. Meng

    • Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1

  • K.A. Ross

    • Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1

  • H.M.L. Noad

    • Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1

  • H.A. Dabkowska

    • Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1

  • B.D. Gaulin

    • Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1

  • J.B. Kycia

    • Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1