The h‐SbxWO3+2x Oxygen Excess Antimony Tungsten Bronze
- von Rohr, Fabian O
- Ryser, Alice
- Ji, Huiwen
- Stolze, Karoline
- Tao, Jing
- Frick, Jessica J
- Patzke, Greta R
- Cava, Robert J
DOIAbstract
We describe the previously unreported oxygen excess hexagonal antimony tungsten bronze with composition Sb0.5W3O10, in the following denoted as h‐SbxWO3+2x with x=0.167, to demonstrate its analogy to classical AxWO3 tungsten bronzes. This compound forms in a relatively narrow temperature range between 580 °C<T<620 °C. It was obtained as a dark‐blue polycrystalline powder, and as thin, needle‐shaped, blue single crystals. h‐SbxWO3+2x crystallizes in the hexagonal space group P6/mmm with the cell parameters a=7.4369(4) Å and c=3.7800(2) Å. The antimony and excess oxygen occupy the hexagonal channels within the network of corner‐sharing WO6 octahedra. h‐SbxWO3+2x has a resistivity of ρ300 K≈1.28 mΩ cm at room temperature, with little if any te...
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