Report summary

Pennsylvania State University Department of Physics in 2018-2020 reads as a 40-PI network with 40 internal PI collaborations. The dominant subject mix is Physics and Astronomy as the leading field (42% of slots across 26 PIs; 26 labels), Materials Chemistry as the leading subfield (14% of slots across 12 PIs; 12 labels), and Astrophysics and Cosmic Phenomena as the leading topic (6% of slots across 7 PIs; 7 labels). That is promising: collaboration is not just one large hairball, and the leading breakdown groups cover 20 PIs across distinct clusters. The leading PI names are Mauricio Terrones (26.8 weighted works; 2D Materials and Applications, Graphene research and applications). The most visible ties are Mikael C. Rechtsman and Alexander Cerjan (10 shared works, weight 9.1). The leading breakdown groups are group 1 with 9 PIs, 8 internal connections, weight 19.7, around Materials Chemistry, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, led by Mauricio Terrones, Venkatraman Gopalan, Yin‐Ting Yeh; group 2 with 7 PIs, 13 internal connections, weight 20.4, around Nuclear and High Energy Physics, Astronomy and Astrophysics, led by Kohta Murase, Shigeo S. Kimura, S. Coutu.