Structural Phase Transitions in K3Na(SeO4)2 Crystals
✍ Scribed by Krajewski, T. ;Piskunowicz, P. ;Mróz, B.
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 394 KB
- Volume
- 135
- Category
- Article
- ISSN
- 0031-8965
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## Abstract DC electrical conductivity studies were carried out along the three crystallographic axes for Tripotassium sodium diselenate (K~3~Na(SeO~4~)~2~ or KNSe). Earlier studies of phase transition in this crystal show successive phase transitions at 334 K, 346 K, 730 K, and 758 K. In this pape
K,Na(SeO,), single crystal cleaved surfaces were imaged by means of an atomic force microscope in air. The images revealed atomically flat terraces 500 nm wide, with steps, this height being the multiple of the K,Na(SeO,), c/2 lattice constant. For the first time, atomic resolution was observed on t