Role of strain in inducing quantum fluctuations in Pr2ScNbO7
The most compelling evidence to date of quantum spin-ice correlations has been provided by studies of Pr2Zr2O7 and Pr2Hf2O7, and structural disorder is believed to play a crucial role. Here we propose to study Pr2ScNbO7, where the replacement of tetravalent ions by an equal number of trivalent and pentavalent ions is expected to introduce strains without the complication of introducing charge-compensating oxygen vacancies. We propose to separate the structural diffuse scattering from the magnetic diffuse scattering at low temperature using XYZ polarisation analysis on D7. The structural diffuse scattering will determine the defect structures, giving the magnitudes of ionic displacements and the nature of the strain distribution. The magnetic diffuse scattering will tell us to what extent the presence of uncorrelated spins from quantum fluctuations is due to the structural disorder. In this way, we expect to unambiguously distinguish between quantum and classical spin ice behaviour.
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The recommended format for citing this dataset in a research publication is in the following format:
GOFF Jonathan P.; CASTELNOVO Claudio; S E Dutton; MANGIN-THRO Lucile; NORTHAM DE LA FUENTE Tomas Stephen; PRABHAKARAN Dharmalingam and WILDES Andrew. (2021). Role of strain in inducing quantum fluctuations in Pr2ScNbO7. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-53-295
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