Origins of the Quantum Spin Ice state and Threshold Effect in Pr2Hf2O7
The Quantum Spin Ice (QSI) state, where the two-in-two-out configurations formed by the Ising variables are allowed to tunnel among themselves, is realised in Pr2Hf2O7 based on our last measurements on IN5 (Nature Physics, 14, 711-715 (2018)). The quantum field theory (quantum electrodynamics) that was used to compare with our data, predicts another distinctive feature for this ground state: the suppression of the pinch points, as compared to the sharp anisotropic features observed in classical spin ices, should be progressive as a function of temperature (Phys. Rev. B, 86, 075154 (2012)). We propose to measure this temperature dependence, which will put further limits on the parameters of the theory used to reproduce the experimental data. Moreover, in a second time, we propose to use a longer wavelength in order to better measure the lower edge of the continuum of spin excitations, where a 'threshold effect' was recently predicted by theory (arXiv:1906.01628).
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
Romain Sibille; FENNELL Tom; LHOTEL Elsa; OLLIVIER Jacques; PETIT Sylvain and POREE Victor. (2021). Origins of the Quantum Spin Ice state and Threshold Effect in Pr2Hf2O7. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-05-793
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.