Formation of a nematic fluid at high fields in Sr3Ru2O7.
In principle, a complex assembly of strongly interacting electrons can self-organize into a wide variety of collective states, but relatively few such states have been identified in practice. We report that, in the close vicinity of a metamagnetic quantum critical point, high-purity strontium ruthenate Sr3Ru2O7 possesses a large magnetoresistive anisotropy, consistent with the existence of an electronic nematic fluid. We discuss a striking phenomenological similarity between our observations and those made in high-purity two-dimensional electron fluids in gallium arsenide devices.
Borzi
R A
RA
Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9SS, UK. r.chufo@gmail.com
Grigera
S A
SA
Farrell
J
J
Perry
R S
RS
Lister
S J S
SJ
Lee
S L
SL
Tennant
D A
DA
Maeno
Y
Y
Mackenzie
A P
AP