Study on the effect of Bi/Sr ratio on the device characteristics of high-Tc superconducting terahertz wave emitters made of Bi2Sr2CaCu2O8+δ single crystals
M. Nakayama, S. Nakagawa, T. Yamaguchi, H. Minami, K. Kadowaki, H. Nakao, T. Mochiku, M. Tsujimoto, S. Ishida, H. Eisaki, T. Kashiwagi.