Mechanism of the antiferromagnetic transition in the geometrically frustratedmagnet Er2Ti2O7
We would like to study the evolution of the spin gap as a function of the temperature and of magnetic field in the geometrically frustrated pyrochlore Er2Ti2O7. The aim of the experiment is to determine the mechanism responsible for the stabilization of the long range order in this material. Indeed, recent reports claim that it might be "order by disorder", but the CEF small anisotropies might also be at play. We hope to be able to get a set of results allowing to discriminate between these two scenarii.
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PETIT Sylvain; DECORSE Claudia; GUITTENY Solene; LHOTEL Elsa; I. MIREBEAU; MUTKA Hannu; OLLIVIER Jacques and ROBERT Julien. (2015). Mechanism of the antiferromagnetic transition in the geometrically frustratedmagnet Er2Ti2O7. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-02-440
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