Large negative tension-impedance effect in a soft ferromagnetic microwire Tao Wang, Bicong Wang, Siyuan Liu, Yufeng Luo, Hengyu Li, Mei Liu, Jinjun Rao, Zhizheng Wu, Huayan Pu, Jun Luo and Shaorong Xie EPL, 131 6 (2020) 60002 Published online: 13 October 2020 DOI: 10.1209/0295-5075/131/60002