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@ARTICLE{Diakhate:16638,
author = {Diakhate, M. S. and Hermann, R. and Möchel, A. and
Sergueev, I. and Sondergaard, M. and Christensen, M. and
Verstraete, M. J.},
title = {{T}hermodynamic, thermoelectric and magnetic properties of
{F}e{S}b2: {A} combined first-principles and experimental
study},
journal = {Physical review / B},
volume = {84},
number = {12},
issn = {1098-0121},
address = {College Park, Md.},
publisher = {APS},
reportid = {PreJuSER-16638},
pages = {125210},
year = {2011},
note = {The research was funded through the ARC 10/15-03-TheMoTher
grant, financed by the French Community of Belgium. We
acknowledge ULg-SEGI and the Red Espanola de
Supercomputacion (Cesvima) for supercomputer time. We thank
H.-C. Wille and D. Bessas for their support during the NIS
measurements and J. Persson for providing the Laue
diffractions. The European Synchrotron Radiation Facility is
acknowledged for provision of synchrotron radiation beam
time at the nuclear resonance station ID18 and D22N. R. H.
acknowledges support from the Helmholtz-University Young
Investigator Group Lattices Dynamics in Emerging Functional
Materials.},
abstract = {We analyze the thermodynamic, magnetic, and transport
properties of the narrow band-gap semiconductor FeSb2 using
density functional theory calculations corroborated by
nuclear inelastic spectroscopy and ultrasound experiments.
The vibrational properties (phonon spectrum, density of
states, heat capacity) and elastic constants are computed
through response function calculations and are in good
agreements with the measurements. The electron-phonon
coupling effects are also studied. The estimations of
linewidth broadening due to electron-phonon coupling along
the high-symmetry directions in the first Brillouin zone are
given. The linewidth broadening reaches the largest value
for Fe optical modes in the vicinity of the X[0.5,0,0]
point. The broadening, when compared to those obtained at
the other symmetry points, differs by up to two orders of
magnitude. From the Boltzmann theory applied to our
electronic band structure, we investigate the electrical
transport properties. It is found that a purely electronic
structure description is incompatible with the record value
of the Seebeck coefficient experimentally observed at T
approximate to 12 K. The diamagnetic to paramagnetic
crossover at a temperature around 100 K is also described
from the calculation of the magnetic susceptibility, and
results compare well with experiment.},
keywords = {J (WoSType)},
cin = {PGI-4 / JCNS-2 / JARA-FIT},
ddc = {530},
cid = {I:(DE-Juel1)PGI-4-20110106 / I:(DE-Juel1)JCNS-2-20110106 /
$I:(DE-82)080009_20140620$},
pnm = {Grundlagen für zukünftige Informationstechnologien /
Großgeräte für die Forschung mit Photonen, Neutronen und
Ionen (PNI)},
pid = {G:(DE-Juel1)FUEK412 / G:(DE-Juel1)FUEK415},
shelfmark = {Physics, Condensed Matter},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000295371900010},
doi = {10.1103/PhysRevB.84.125210},
url = {https://juser.fz-juelich.de/record/16638},
}