@article{sun,
  title = {Ultranarrow Germanene Nanoribbons with Pentagonal Rings},
  author = {Kewei Sun, Orlando J. Silveira, Adam S. Foster, Shigeki Kawai},
  publisher = {American Chemical Society (ACS)},
  year = {2026},
  keywords = {Germanene nanoribbons, Pentagonal germanium nanostructures, Scanning tunneling microscopy, GeNR/Ag(111) system, Field-effect resonant tunneling spectra}
}