Description of lattice anharmonicity observed in ferroelectrics with unusual three-well local potential
For Sn_2P_2S_6 family of uniaxial ferroelectrics, the anharmonic quantum oscillators model, based on local three-well potential for spontaneous polarization fluctuations, has been used for a description of anharmonic properties, namely thermal expansion. The calculated pseudospin fluctuations spectr...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Institute for Condensed Matter Physics
2018-09-01
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| Series: | Condensed Matter Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.5488/CMP.21.33001 |