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@ARTICLE{Azpiroz:276211,
author = {Azpiroz, Julen Ibanez and Eiguren, Asier and Bergara, Aitor
and Pettini, Giulio and Modugno, Michele},
title = {{A}b initio analysis of the topological phase diagram of
the {H}aldane model},
journal = {Physical review / B},
volume = {92},
number = {19},
issn = {1098-0121},
address = {College Park, Md.},
publisher = {APS},
reportid = {FZJ-2015-06676},
pages = {195132},
year = {2015},
abstract = {We present an ab initio analysis of a continuous
Hamiltonian that maps into the celebrated Haldane model. The
tunneling coefficients of the tight-binding model are
computed by means of two independent methods—one based on
the maximally localized Wannier functions, and the other
through analytic expressions in terms of gauge-invariant
properties of the spectrum—that provide a remarkable
agreement and allow one to accurately reproduce the exact
spectrum of the continuous Hamiltonian. By combining these
results with the numerical calculation of the Chern number,
we are able to draw the phase diagram in terms of the
physical parameters of the microscopic model. Remarkably, we
find that only a small fraction of the original phase
diagram of the Haldane model can be accessed, and that the
topological insulator phase is suppressed in the deep
tight-binding regime.},
cin = {IAS-1 / PGI-1 / JARA-FIT},
ddc = {530},
cid = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
$I:(DE-82)080009_20140620$},
pnm = {142 - Controlling Spin-Based Phenomena (POF3-142)},
pid = {G:(DE-HGF)POF3-142},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000364815100003},
doi = {10.1103/PhysRevB.92.195132},
url = {https://juser.fz-juelich.de/record/276211},
}