@article{ISI:000305605100009,
 abstract = {We address how the nature of linearly dispersing edge states of
two-dimensional (2D) topological insulators evolves with increasing
electron-electron correlation engendered by a Hubbard-like on-site
repulsion U in finite ribbons of two models of topological band
insulators. Using an inhomogeneous cluster slave-rotor mean-field method
developed here, we show that electronic correlations drive the
topologically nontrivial phase into a Mott insulating phase via two
different routes. In a synchronous transition, the entire ribbon attains
a Mott insulating state at one critical U that depends weakly on the
width of the ribbon. In the second, asynchronous route, Mott
localization first occurs on the edge layers at a smaller critical value
of electronic interaction, which then propagates into the bulk as U is
further increased until all layers of the ribbon become Mott localized.
We show that the kind of Mott transition that takes place is determined
by certain properties of the linearly dispersing edge states which
characterize the topological resilience to Mott localization.},
 article-number = {235449},
 author = {Medhi, Amal and Shenoy, Vijay B. and Krishnamurthy, H. R.},
 doi = {10.1103/PhysRevB.85.235449},
 issn = {1098-0121},
 journal = {PHYSICAL REVIEW B},
 month = {JUN 25},
 number = {23},
 orcid-numbers = {Medhi, Amal/0000-0001-5322-1649},
 times-cited = {8},
 title = {Synchronous and asynchronous Mott transitions in topological insulator
ribbons},
 unique-id = {ISI:000305605100009},
 volume = {85},
 year = {2012}
}