TY - RPRT TI - Spontaneously formed phonon frequency combs in van der Waals solid CrGeTe 3 and CrSiTe 3 AU - Chen, Lebing [University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000298298428) AU - Ye, Gaihua [Texas Tech Univ., Lubbock, TX (United States)] AU - Nnokwe, Cynthia [Texas Tech Univ., Lubbock, TX (United States)] AU - Pan, Xing-Chen [Tohoku Univ., Sendai (Japan)] AU - Tanigaki, Katsumi [Tohoku Univ., Sendai (Japan)] AU - Cheng, Guanghui [Tohoku Univ., Sendai (Japan); Purdue Univ., West Lafayette, IN (United States)] AU - Chen, Yong P. [Tohoku Univ., Sendai (Japan); Purdue Univ., West Lafayette, IN (United States); Aarhus Univ. (Denmark)] (ORCID:0000000273564179) AU - Yan, Jiaqiang [Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000166254706) AU - Mandrus, David G. [Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000336167104) AU - Llacsahuanga Allcca, Andres E. [Purdue Univ., West Lafayette, IN (United States)] AU - Giles-Donovan, Nathan [University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] AU - Birgeneau, Robert J. [University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000311928333) AU - He, Rui [Texas Tech Univ., Lubbock, TX (United States)] (ORCID:0000000223687269) PY - 2025 DO - 10.1038/s41467-025-61173-7 UR - https://www.osti.gov/biblio/2572177 ID - 2572177 ER -