Magnetic structure of Er2Ti2O7
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Colleges, School and Institutes
We employ the previously published neutron-scattering experiments to suggest that Er2Ti2O7 has a broken-symmetry multiple-q state with tetragonal magnetic symmetry. The ordered moments do not appear to lie close to the crystal-field anticipated directions, and we suggest that the low-energy gapless mode, visible in specific-heat measurements, is not of the usual transverse isotropic Goldstone-mode type but is longitudinal and is associated with the internal transfer of magnetism between distinct magnetic Bragg spots.
|Number of pages||1|
|Journal||Physical Review B|
|Publication status||Published - 1 Sep 2011|