Berlin 2015 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 44: Correlated Electrons: Quantum-Critical Phenomena – Experiments

TT 44.6: Talk

Tuesday, March 17, 2015, 15:15–15:30, H 3005

Effect of anisotropic strain on the quantum critical phase of Sr₃Ru₂O₇ — Daniel Brodsky^1,2, Mark Barber^1,2, •Clifford Hicks¹, Robin Perry³, and Andrew Mackenzie^1,2 — ¹MPI-Chemische Physik fester Stoffe, Dresden, Germany — ²Scottish Universities Physics Alliance (SUPA), School of Physics and Astronomy, University of St Andrews, St Andrews, UK — ³SUPA, School of Physics, University of Edinburgh, Edinburgh, UK

We have developed a novel piezoelectric-based device for applying both compressive and tensile strains to single crystals. One particularly appealing target for such studies is Sr₃Ru₂O₇. Sr₃Ru₂O₇ has a novel quantum critical phase around a metamagnetic transition at 8 T, which shows very strong transport anisotropy in the presence of weak symmetry-breaking fields. We discuss the response of this phase to applied anisotropic lattice strain.