Quasi-periodic magnetic flux jumps in the superconducting state of Ba0.5K0.5Fe1.9M0.1As2 (M=Fe, Co, Ni, Cu, and Zn)
J. Li, Y. Guo, S. Zhang, Y. Tsujimoto, X. Wang, C.I. Sathish, S. Yu, Y. Sun, W. Yi, K. Yamaura, E. Takayama-Muromachi, Y. Shirako, M. Akaogi, L.E. De Long.
