Related Experiment Videos
A new organic superconductor, (DODHT)2BF4 x H2O
Hiroyuki Nishikawa1, Asami Machida, Takanobu Morimoto
1Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan. hiron@comp.metro-u.ac.jp
Chemical Communications (Cambridge, England)
|March 18, 2003
Summary
Researchers discovered a new organic superconductor, (DODHT)2BF4 x H2O, which exhibits superconductivity at 3.2 K under high pressure. This expands the family of DODHT-based organic superconductors.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Organic Chemistry
Background:
- Organic superconductors offer tunable electronic properties.
- The (1,4-dioxane-2,3-diyldithio)dihydrotetrathiafulvalene (DODHT) molecule is a promising building block for novel organic conductors.
- Previous work established DODHT-based salts with PF6 and AsF6 anions as superconductors.
Purpose of the Study:
- To synthesize and characterize a new DODHT-based salt, specifically the BF4 salt containing a water molecule.
- To investigate the superconducting properties of this new material under hydrostatic pressure.
Main Methods:
- Chemical synthesis of the [(DODHT)2BF4 x H2O] salt.
- Superconductivity measurements under applied hydrostatic pressure.
Main Results:
- The BF4 salt of DODHT, formulated as [(DODHT)2BF4 x H2O], was successfully synthesized.
- This new material exhibits a superconducting transition at a critical temperature (Tc) of 3.2 K.
- The superconducting transition occurs under a hydrostatic pressure of 15.5 kbar.
Conclusions:
- The discovery of [(DODHT)2BF4 x H2O] expands the known family of DODHT-based organic superconductors.
- This finding highlights the potential of DODHT derivatives in the design of novel superconducting materials.
- Further research can explore variations in anion and hydration to tune superconducting properties.