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Size effects in the ferroelastic LiCsSO4

Authors: 

A. Yu. Milinskiy, S. V. Baryshnikov, E. V. Charnaya, Hoai Thuong Nguyen

Source title: 
Ferroelectrics, 543(1): 12-17, 2019 (ISI)
Academic year of acceptance: 
2019-2020
Abstract: 

Temperature dependences of the linear permittivity ε' and coefficient of the third harmonic generation γ3 were studied for the nanocomposite produced by embedding the LiCsSO4 ferroelastic into porous alumina with a pore size of 100 nm compared to the bulk counterpart. The thermal hysteresis was found for the non-linear coefficient γ3 in the nanocomposite at the ferroelastic phase transition. The phase transition temperature in the nanocomposite increased by 15 K upon warming. The results observed were ascribed to mechanical stresses in confined LiCsSO4 nanorodes.