| Autor: |
Vanina Polina, Silin Nikita, Bosak Alexey, Chernyshov Dmitry, Naberezhnov Alexander |
| Jazyk: |
English<br />Russian |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
St. Petersburg Polytechnical University Journal: Physics and Mathematics, Vol 13, Iss 4 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2405-7223 |
| DOI: |
10.18721/JPM.13402 |
| Popis: |
Temperature dependences of diffuse scattering of synchrotron radiation on model relaxor single crystal Sr0.6Ba0.4Nb2O6 have been studied in the temperature interval 90 – 290 K in the vicinities of lattice points (3 3 2), (4 1 2) and (0 0 2) in the directions [0 0 1], [0 1 0] and [1 -1 0]. It is shown, that this diffuse scattering (DS) is a strongly anisotropic. Its intensity IDS(T,q) is proportional q-α, where q is a reduce wavevector. The temperature dependences of the parameters α have been obtained, and it is established, that the microscopic modification of structure in Sr0.6Ba0.4Nb2O6 continues on cooling below a transition in the relaxor state. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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