Dielectric and calorimetric studies of ferroelectric phase transitions in Li (2– x ) Na x Ge 4 O 9 crystals
The ferroelectric phase transitions of LiNaGe 4 O 9 , Li 1.1 Na 0.9 Ge 4 O 9 , Li 1.2 Na 0.8 Ge 4 O 9 and Li 1.7 Na 0.3 Ge 4 O 9 crystals were studied. Experiments were carried out by means of classical dielectric measurements and using an AC calorimetric specific‐heat measuring system. Critical beh...
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| Veröffentlicht in: | physica status solidi (b) 2005-12, Vol.242 (15), p.3216-3226 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The ferroelectric phase transitions of LiNaGe
4
O
9
, Li
1.1
Na
0.9
Ge
4
O
9
, Li
1.2
Na
0.8
Ge
4
O
9
and Li
1.7
Na
0.3
Ge
4
O
9
crystals were studied. Experiments were carried out by means of classical dielectric measurements and using an AC calorimetric specific‐heat measuring system. Critical behaviour is explained within Landau theory. The expansion coefficients of the state equation are determined. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
|---|---|
| ISSN: | 0370-1972 1521-3951 |
| DOI: | 10.1002/pssb.200541057 |