  Sr3Ru2O7 belongs to the family of layered strontium ruthenates and exhibits a
range of unusual emergent properties, such as electron nematic behavior and
metamagnetism. Here, we show that epitaxial film strain significantly modifies
these phenomena. In particular, we observe enhanced magnetic interactions and
an electron nematic phase that extends to much higher temperatures and over a
larger magnetic field range than in bulk single crystals. Furthermore, the
films show an unusual anisotropic non-Fermi liquid behavior that is controlled
by the direction of the applied magnetic field. At high magnetic fields the
metamagnetic transition to a ferromagnetic phase recovers isotropic
Fermi-liquid behavior. The results support the interpretation that these
phenomena are linked to the special features of the Fermi surface, which can be
tuned by both film strain and an applied magnetic field.
