1. Institute of Materials, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
2. Department of Electrical Engineering, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan
3. Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Ube 755-8611, Japan
4. Department of Physics and Information Technology, Kyushu Institute of Technology, Iizuka 820-8502, Japan
5. Research Center for Neuromorphic AI Hardwares, Kyushu Institute of Technology, Kitakyushu 808-0196, Japan