Zeng Xue, Su Jie, Huang Xue-Fei, Pang Hui-Ling, Huang Cheng. Frequency-ratio-dependent ultrafast dynamics in nonsequential double ionization by co-rotating two-color circularly polarized laser fieldsJ. Acta Physica Sinica, 2021, 70(24): 243201. DOI: 10.7498/aps.70.20211112