| abstract |
Provided is an electrode layer that includes a solid solution which comprises a complex oxide that has, as constituent elements, tungsten, molybdenum, and oxygen. Preferably, when the total of the tungsten, molybdenum, and oxygen is 100 at%, tungsten is 1 to 40 at% and molybdenum is 1 to 40 at%, with the remainder being oxygen. The complex oxide is preferably a solid solution. In the solid solution, the tungsten-oxygen bond or the molybdenum-oxygen bond preferably includes the three types of tungsten-oxygen-tungsten, molybdenum-oxygen-molybdenum, and tungsten-oxygen-molybdenum. |