TY - RPRT TI - Valence-free open nanoparticle superlattices AU - Nayak, Binay P. [Ames Laboratory, and Iowa State Univ., Ames, IA (United States)] (ORCID:0000000239954114) AU - Wang, Wenjie [Ames Laboratory (AMES), Ames, IA (United States)] AU - Kakkar, Prapti [Ames Laboratory, and Iowa State Univ., Ames, IA (United States)] (ORCID:0000000273834642) AU - Zhang, Honghu [Brookhaven National Laboratory (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)] (ORCID:0000000317847825) AU - Mallick, Zinnia [South Dakota School of Mines and Technology, Rapid City, SD (United States)] (ORCID:0009000013185401) AU - Zhou, Shan [South Dakota School of Mines and Technology, Rapid City, SD (United States)] (ORCID:0000000264763280) AU - Nykypanchuk, Dmytro [Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)] AU - Mallapragada, Surya K. [Ames Laboratory, and Iowa State Univ., Ames, IA (United States)] (ORCID:0000000294827273) AU - Travesset, Alex [Ames Laboratory, and Iowa State Univ., Ames, IA (United States)] AU - Vaknin, David [Ames Laboratory, and Iowa State Univ., Ames, IA (United States)] (ORCID:0000000208999248) PY - 2026 DO - 10.1038/s41467-026-68316-4 UR - https://www.osti.gov/biblio/3020813 ID - 3020813 ER -