Negative thermal expansion in functional materials: controllable thermal expansion by chemical modifications

Negative thermal expansion (NTE) is an intriguing physical property of solids, which is a consequence of a complex interplay among the lattice, phonons, and electrons. Interestingly, a large number of NTE materials have been found in various types of functional materials. In the last two decades good progress has been achieved to discover new phenomena and mechanisms of NTE. In the present review article, NTE is reviewed in functional materials of ferroelectrics, magnetics, multiferroics, superconductors, temperature-induced electron configuration change and so on. Zero thermal expansion (ZTE) of functional materials is emphasized due to the importance for practical applications. The NTE functional materials…

• NN
  National Natural Science Foundation of China

  Awards: IRT1207, 21322102, 21322102, 91422301, 21231001, 91422301, 21231001
• BU
  Beihang University
• UO
  University of Science and Technology Beijing
• FR
  Fundamental Research Funds for the Central Universities