Improved temperature coefficient of resistivity in La0.67Ca0.25‐xSr0.08AgxMnO3 (0.06 ≤ x ≤ 0.12) polycrystalline ceramics via Ag doping. - Wang, Jiachen; Sun, Jiankun; Chen, Zihao; Wang, Yao; Han, Jiamei; Wang, Haitao; Liang, Xiaolu; Wang, Zhenyu; Pan, Zimeng; Ma, Jun; Jiang, Xuexing; Gu, Xin; et al. (Journal of the American Ceramic Society, 2025)