TY  - JOUR
EP  - 456
SN  - 1521-3951
N2  - 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.
VL  - 250
IS  - 3
TI  - Electronic nematicity and its relation to quantum criticality in Sr3Ru2O7 studied by thermal expansion
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
Y1  - 2013/03/01/
AV  - public
UR  - https://doi.org/10.1002/pssb.201200905
A1  - Stingl, C
A1  - Perry, RS
A1  - Maeno, Y
A1  - Gegenwart, P
JF  - Physica Status Solidi B - Basic Solid State Physics
PB  - WILEY-V C H VERLAG GMBH
ID  - discovery10134050
SP  - 450
ER  -