@article{
 title = {Low-Temperature Phonon Thermal Conductivity of the Quasi-Onedimensional Single Crystals (Ta1−xNbxSe4)2I},
 type = {article},
 year = {1998},
 identifiers = {[object Object]},
 pages = {815-840},
 volume = {111},
 websites = {http://link.springer.com/10.1023/A:1022273107580},
 id = {86700b59-1d8a-3ea3-99bc-cdcddc2cd3ad},
 created = {2016-12-06T12:07:40.000Z},
 file_attached = {false},
 profile_id = {12182ba0-f80b-33ff-8da5-1813b38b682d},
 group_id = {49ce86ba-a52a-36eb-a7fb-9e42f732edd5},
 last_modified = {2017-03-14T17:25:32.499Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 citation_key = {Smontara1998},
 source_type = {article},
 private_publication = {false},
 abstract = {We report on thermal conductivity measurements of the quasi-onedimensional single crystals (Ta1-xNbxSe4)2I (x = 0, 0.008, 0.01) between 50 mK and 6 K. The thermal conductivity of a (TaSe4)2I sample obeys a cubic variation below 0.8 K, in good agreement with the boundary scattering regime. For two Nb doped samples, the thermal conductivity between 0.1 K and 1 K obeys a quasiquadratic regime, which is ascribed to extended "linear or planar defects," specific to this one-dimensional structure, and introduced either by doping or by successive thermal cycling, while it obeys a cubic variation below 0.1K, as in the case of pure (TaSe4)2I. In the vicinity of 1 K and 2 K for pure and 1 at. % Nb doped samples, thermal conductivity shows a very sharp peak, which exceeds the low-temperature cubic boundary Casimir regime, or the quasi quadratic regime, respectively. The presence of the peak in these systems is explained by a phonon Poiseuille flow, originating from their strong anharmonicity, amplified by the lattice anisotropy.},
 bibtype = {article},
 author = {Smontara, A and Lasjaunias, J.-C. and Maynard, R and Berger, H and Lévy, F},
 journal = {Journal of Low Temperature Physics},
 number = {5/6}
}

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