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| Home > Publications database > Pressure-induced non-superconducting phase of β -Na 0.33 V 2 O 5 and the mechanism of high-pressure phase transitions in β -Na 0.33 V 2 O 5 and β -Li 0.33 V 2 O 5 at room temperature |
| Home > Publications database > Pressure-induced non-superconducting phase of β -Na 0.33 V 2 O 5 and the mechanism of high-pressure phase transitions in β -Na 0.33 V 2 O 5 and β -Li 0.33 V 2 O 5 at room temperature |
| Journal Article | FZJ-2016-00380 |
; ; ; ; ; ;
2016
IOP Publ.
Bristol
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Please use a persistent id in citations: doi:10.1088/0953-8984/28/3/035401
Abstract: The crystal structure of β-Na0.33V2O5 (C2/m, Z = 6) has been studied on compression to 19 GPa at room temperature using synchrotron single-crystal diffraction in a diamond anvil cell. The vanadate bronze undergoes a phase transition to a non-superconducting phase at about 12 GPa due to changes of polyhedral connectivities in the vanadate framework and due to ordering of the Na+ cations. This novel structure (Cm, Z = 6) is interpreted as an intermediate stage in the sequence of pressure-induced transformations in the β-A 0.33V2O5 bronzes (A: Li, Na) at room temperature. This study reveals the close relation between the loss of the two-leg ladder V–V system and non-superconducting state of the β-A 0.33V2O5 materials.
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