Publication Type
Journal
Journal Name
Physical Review B
Publication Date
Volume
82
Issue
18
Abstract
Very large anisotropies in transport quantities have been observed in the presence of very small in-plane structural anisotropy
in many strongly correlated electron materials.
By studying the two-dimensional Hubbard model with dynamical-mean-field theory for clusters,
we show that such large anisotropies can be induced without static stripe order
if the interaction is large enough to yield a Mott transition.
Anisotropy decreases at large frequency.
The maximum effect on conductivity anisotropy occurs in the underdoped regime, as observed in high temperature superconductors.
