Liu Yong, Xu Zhi-Jun, Fan Li-Qun, Yi Wen-Tao, Yan Chun-Yan, Ma Jie, Wang Kun-Peng. Preparation and properties of multi-effect potassium sodium niobate based transparent ferroelectric ceramicsJ. Acta Physica Sinica, 2020, 69(24): 247702. DOI: 10.7498/aps.69.20201317