@article{
 title = {Low-energy excitations and energy relaxations in CDW ground state at very low temperatures},
 type = {article},
 year = {1991},
 identifiers = {[object Object]},
 pages = {1254-1259},
 volume = {131-133},
 websites = {http://linkinghub.elsevier.com/retrieve/pii/002230939190765X},
 id = {c46bee7a-d6f9-3cde-910e-b68263d3264d},
 created = {2016-11-30T11:49:05.000Z},
 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 = {Biljakovic1991b},
 source_type = {article},
 private_publication = {false},
 abstract = {The similarity in the thermal properties between glassy systems and charge density wave (CDW) systems at very low temperatures is shown. All the CDW systems investigated (NbSe3, TaS3, (TaSe4)2I, K0.3MoO3 and KCP) exhibit below 1 K an extra specific heat contribution and in addition, to a greater or lesser extent, non-exponential thermal relaxation and 'thermal aging' effects. The extra-specific heat contribution obeys a power law T$ν$, with 0.2 ≲ $ν$ ≲ 0.8 depending on the compound and with amplitudes of the same order as for glassy materials for which the two-level tunnelling system (TLS) model is widely accepted. Strongly non-linear regimes are observed in the thermal relaxation: the energy relaxation after a heat input does not show the expected exponential behaviour and the relaxation rate increases with the duration of the thermal perturbation. This 'thermal aging' effect is strongly temperature-dependent with a trend to larger relaxation times at low temperatures. © 1991.},
 bibtype = {article},
 author = {Biljaković, K and Lasjaunias, J.-C. and Monceau, P},
 journal = {Journal of Non-Crystalline Solids},
 number = {PART 2}
}

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