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Frontispiece: Negative‐to‐Positive Thermal Conductivity Temperature Coefficient Transition Induced by Dynamic Fluctuations of the Alkyl Chains in the Layered Complex (C 4 H 9 NH 3 ) 2 CuCl 4
Author(s) -
Hoshino Norihisa,
Tamura Syunsaku,
Akutagawa Tomoyuki
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202081263
Subject(s) - alkyl , thermal conductivity , glass transition , thermal , negative temperature , phase transition , temperature coefficient , materials science , transition temperature , thermal expansion , thermodynamics , analytical chemistry (journal) , chemistry , condensed matter physics , organic chemistry , polymer , physics , composite material , superconductivity
A negative‐to‐positive transition of the temperature coefficients of thermal conductivity was found in the two‐dimensional organic–inorganic layered complex (C 4 H 9 NH 3 ) 2 CuCl 4 over the three structural phase transitions. The dynamic thermal fluctuations in the organic layers were considered to induce glass‐like thermal conducting properties in the material, such as a positive temperature coefficient. For more information see the Full Paper by N. Hoshino et al. on page 2610 ff.