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@ARTICLE{Akola:9152,
author = {Akola, J. and Jones, R. O. and Kohara, S. and Usuki, T. and
Bychkov, E.},
title = {{D}ensity variations in liquid tellurium: {R}oles of rings,
chains and cavities},
journal = {Physical review / B},
volume = {81},
number = {9},
issn = {1098-0121},
address = {College Park, Md.},
publisher = {APS},
reportid = {PreJuSER-9152},
pages = {094202},
year = {2010},
note = {The HEXRD experiment was approved by JASRI (Proposal No.
2009A1207), and the calculations were performed on IBM Blue
Gene/P and p6 575 computers in the FZ Julich with grants
from the FZJ and the John von Neumann Institute for
Computing (NIC). We thank C. Bichara for discussions and
providing the original data of Ref. 5, and the Academy of
Finland (J.A.), the Japan Science and Technology Agency (S.
K. and T. U.), and the European Union Interreg IVA Program
(E. B.) for support.},
abstract = {Liquid tellurium has been studied by
density-functional/molecular-dynamics simulations at 560,
625, 722, and 970 K and by high-energy x-ray diffraction
(HEXRD) at 763 K and 973 K. The HEXRD measurements agree
very well with earlier neutron-scattering data of Menelle et
al. The density maximum near the melting point (722 K)
reflects the competition between twofold and threefold local
coordination, which results in chain formation and changed
ring statistics at lower T, and the variation with T of the
volume of cavities (26-35 $\%$ of the total). A higher-order
gradient expansion of the exchange-correlation functional is
needed to describe structural details. Changes in the
electronic properties (band gap and dc conductivity) upon
cooling are consistent with a transition from a
high-temperature metal to a semiconductor.},
keywords = {J (WoSType)},
cin = {IFF-1},
ddc = {530},
cid = {I:(DE-Juel1)VDB781},
pnm = {Kondensierte Materie},
pid = {G:(DE-Juel1)FUEK414},
shelfmark = {Physics, Condensed Matter},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000276207300045},
doi = {10.1103/PhysRevB.81.094202},
url = {https://juser.fz-juelich.de/record/9152},
}