lattice dynamic
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2021 ◽  
Vol 29 ◽  
pp. 102799
Author(s):  
Dipangkar Kalita ◽  
Nihal Limbu ◽  
Mahesh Ram ◽  
Raju Kalita ◽  
Atul Saxena

Author(s):  
Vladimir Novikov ◽  
Sergey Kuznetsov ◽  
Nikolay Mitroshenkov ◽  
Aleksandr Matovnikov ◽  
Kirill Ponkratov ◽  
...  

2021 ◽  
Vol 129 (5) ◽  
pp. 054901
Author(s):  
Xi Yang ◽  
Jing Tao ◽  
Weishi Wan ◽  
Lijun Wu ◽  
Victor Smaluk ◽  
...  

2021 ◽  
Vol 13 (1) ◽  
pp. 01013-1-01013-6
Author(s):  
R. K. Suthar ◽  
◽  
N. Y. Pandya ◽  
Adwait D. Mevada ◽  
P. N. Gajjar ◽  
...  

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
O. A. Maslova ◽  
Yu. I. Yuzyuk ◽  
S. A. Barannikova

This work is aimed at studying asymmetric BaTiO31 − xΛ/BaZrO3xΛ ((BT) 1−xΛ/(BZ)xΛ) superlattices, grown by pulsed laser deposition onto (001) MgO substrates. The thicknesses of BT (ferroelectric) and BZ (paraelectric) layers were varied so that х ranged from 0 to 1 at a modulation period Λ of about 80 Å. The films were 400 nm thick. The out-of-plane lattice parameters of constituents were assessed using X-ray diffraction. The lattice dynamic peculiarities of superlattices were probed via Raman spectroscopy; special attention is paid to the analysis of E(1TO) and A1(2TO) ferroelectric soft modes. A comparative analysis of data acquired via both experimental techniques reveals the enhancement of stress between BT and BZ layers with a decrease in symmetry from the tetragonal to a monoclinic phase due to strains induced by the lattice parameter mismatch between the constituents.


2020 ◽  
Author(s):  
O. A. Maslova ◽  
Y. I. Yuzyuk ◽  
A. Kumar ◽  
N. Ortega ◽  
R. Katiyar ◽  
...  

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