High temperature onset of field-induced transitions in the spin-ice compound Dy2Ti2O7

Abstract

We have studied the field-dependent ac magnetic susceptibility of single crystals of Dy2Ti2O7 spin ice along the [111] direction in the temperature range 1.8 K - 7 K. Our data reflect the onset of local spin ice order in the appearance of different field regimes. In particular, we observe a prominent feature at approximately 1.0 T that is a precursor of the low-temperature metamagnetic transition out of field-induced kagome ice, below which the kinetic constraints imposed by the ice rules manifest themselves in a substantial frequency-dependence of the susceptibility. Despite the relatively high temperatures, our results are consistent with a monopole picture, and they demonstrate that such a picture can give physical insight to the spin ice systems even outside the low-temperature, low-density limit where monopole excitations are well-defined quasiparticles.

References in corpus (4)

• Low Temperature Spin Freezing in Dy2Ti2O7 Spin Ice
• Theory of the [111] magnetization plateau in spin ice
• Magnetization process of spin ice in a [111] magnetic field
• Non-monotonic zero point entropy in diluted spin ice

Cited by in corpus (6)

• Brownian Motion and Quantum Dynamics of Magnetic Monopoles in Spin Ice
• New physics in frustrated magnets: Spin ices, monopoles, etc
• Critical speeding-up near the monopole liquid-gas transition in magnetoelectric spin-ice
• AC Susceptibility of the Dipolar Spin Ice Dy2Ti2O7: Experiments and Monte Carlo Simulations
• Determination of the Entropy via Measurement of the Magnetization: Application to the Spin ice Dy2Ti2O7
• Experimental measurement of the isolated magnetic susceptibility