@misc{indiciae658e6044e4aa, title = {A metastable tetragonal phase in two-dimensional halide perovskite lattices driven by a coherent Higgs mode}, author = {Shukla, Ayushi [Argonne National Laboratory (ANL), Lemont, IL (United States). Center for Nanoscale Materials (CNM)] (ORCID:0009000302729030) and Agrawal, Sraddha [Argonne National Laboratory (ANL), Lemont, IL (United States). Center for Nanoscale Materials (CNM)] (ORCID:0000000322950632) and Peifer, Shoshanna [Northwestern Univ., Evanston, IL (United States); International Institute for Nanotechnology, Evanston, IL (United States)] and Kanatzidis, Mercouri G. [Northwestern Univ., Evanston, IL (United States); International Institute for Nanotechnology, Evanston, IL (United States); Argonne National Laboratory (ANL), Lemont, IL (United States)] (ORCID:0000000320374168) and Darancet, Pierre [Argonne National Laboratory (ANL), Lemont, IL (United States). Center for Nanoscale Materials (CNM)] (ORCID:0000000258461673) and Schaller, Richard D. [Argonne National Laboratory (ANL), Lemont, IL (United States). Center for Nanoscale Materials (CNM); Northwestern Univ., Evanston, IL (United States); International Institute for Nanotechnology, Evanston, IL (United States)] (ORCID:0000000196968830)}, year = {2026}, doi = {10.1038/s41563-025-02433-1}, url = {https://www.osti.gov/biblio/3372079}, note = {Source identifier: 3372079} }