@article{discovery10134050, title = {Electronic nematicity and its relation to quantum criticality in Sr3Ru2O7 studied by thermal expansion}, journal = {Physica Status Solidi B - Basic Solid State Physics}, year = {2013}, publisher = {WILEY-V C H VERLAG GMBH}, note = {This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.}, pages = {450--456}, volume = {250}, number = {3}, month = {March}, issn = {1521-3951}, author = {Stingl, C and Perry, RS and Maeno, Y and Gegenwart, P}, url = {https://doi.org/10.1002/pssb.201200905}, abstract = {We report high-resolution measurements of the in-plane thermal expansion anisotropy in the vicinity of the electronic nematic phase in Sr3Ru2O7 down to very low temperatures and in varying magnetic field orientation. For fields applied along the c-direction, a clear second-order phase transition is found at the nematic phase, with critical behavior compatible with the two-dimensional Ising universality class (although this is not fully conclusive). Measurements in a slightly tilted magnetic field reveal a broken fourfold in-plane rotational symmetry, not only within the nematic phase, but extending towards slightly larger fields. We also analyze the universal scaling behavior expected for a metamagnetic quantum critical point, which is realized outside the nematic region. The contours of the magnetostriction suggest a relation between quantum criticality and the nematic phase.} }