Magnetic frustration occurs when nearest-neighbor competing interactions cannot be simultaneously satisfied. Pyrochlores, whose crystalline lattices form corner-sharing tetrahedra, provide the perfect architecture for frustrated magnets. The research on pyrochlore compounds is intense and has already demonstrated remarkable features in magnetic materials. Meanwhile, a prominent example in this big family still stands alone. Studies on this Yb2Ti2O7, in many ways, generated more contradictory than clarifying results. After a set of experiments carried out on different samples, its still not possible to determine why this titanate seems to exhibit a striking sample dependence in its physical properties. This work has the objective of clarify some of these inconsistencies.
