AC Susceptibility of the Dipolar Spin Ice Dy2Ti2O7: Experiments and Monte Carlo Simulations

Hiroshi Takatsu; Kazuki Goto; Hiromi Otsuka; Ryuji Higashinaka; Kazuyuki Matsubayashi; Yoshiya Uwatoko; Hiroaki Kadowaki

doi:10.7566/JPSJ.82.104710

AC Susceptibility of the Dipolar Spin Ice Dy2Ti2O7: Experiments and Monte Carlo Simulations

Strongly Correlated Electrons 2013-10-15 v2 Statistical Mechanics

Authors: Hiroshi Takatsu , Kazuki Goto , Hiromi Otsuka , Ryuji Higashinaka , Kazuyuki Matsubayashi , Yoshiya Uwatoko , Hiroaki Kadowaki

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Abstract

Experimental data of the frequency-dependent ac susceptibility for the dipolar spin ice Dy2Ti2O7 has been analyzed by Monte Carlo simulations on the basis of the single-spin-flip Metropolis algorithm. We have directly evaluated the ac susceptibility by applying an ac magnetic field. We found that the simulated behaviors reproduces the experimental behavior of the ac susceptibility in the temperature range from 0.6 to 1.0 K, where dilute magnetic monopoles diffusively move. The conversion factor from simulation time to real time, i.e., the rate of hopping of monopoles to nearest-neighbor sites, strongly depends on temperature.

Keywords

dipolar spin ice Dy2Ti2O7 ac susceptibility Monte Carlo simulations magnetic monopoles Metropolis algorithm

Cite

@article{arxiv.1305.1854,
  title  = {AC Susceptibility of the Dipolar Spin Ice Dy2Ti2O7: Experiments and Monte Carlo Simulations},
  author = {Hiroshi Takatsu and Kazuki Goto and Hiromi Otsuka and Ryuji Higashinaka and Kazuyuki Matsubayashi and Yoshiya Uwatoko and Hiroaki Kadowaki},
  journal= {arXiv preprint arXiv:1305.1854},
  year   = {2013}
}

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J. Phys. Soc. Jpn. 82, 104710 (2013)

AC Susceptibility of the Dipolar Spin Ice Dy2Ti2O7: Experiments and Monte Carlo Simulations

Abstract

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