English

Deep Spin-Glass Hysteresis Area Collapse and Scaling in the $d=3$ $\pm J$ Ising Model

Disordered Systems and Neural Networks 2016-08-14 v2 Statistical Mechanics

Abstract

We investigate the dissipative loss in the ±J\pm J Ising spin glass in three dimensions through the scaling of the hysteresis area, for a maximum magnetic field that is equal to the saturation field. We perform a systematic analysis for the whole range of the bond randomness as a function of the sweep rate, by means of frustration-preserving hard-spin mean field theory. Data collapse within the entirety of the spin-glass phase driven adiabatically (i.e., infinitely-slow field variation) is found, revealing a power-law scaling of the hysteresis area as a function of the antiferromagnetic bond fraction and the temperature. Two dynamic regimes separated by a threshold frequency ωc\omega_c characterize the dependence on the sweep rate of the oscillating field. For ω<ωc\omega < \omega_c, the hysteresis area is equal to its value in the adiabatic limit ω=0\omega = 0, while for ω>ωc\omega > \omega_c it increases with the frequency through another randomness-dependent power law.

Keywords

Cite

@article{arxiv.1206.0230,
  title  = {Deep Spin-Glass Hysteresis Area Collapse and Scaling in the $d=3$ $\pm J$ Ising Model},
  author = {Ozan S. Sarıyer and Alkan Kabakcioglu and A. Nihat Berker},
  journal= {arXiv preprint arXiv:1206.0230},
  year   = {2016}
}

Comments

6 pages, 6 figures