Forzani, L.Ramos, C. A.Vasallo-Brigneti, Ettore C.Gennaro, A.M.Koropecki, R.R.2020-06-122020-06-122019-03L. Forzani, C.A. Ramos, E.C. Vasallo-Brigneti, A.M. Gennaro, R.R. Koropecki (2019).Negative thermal expansion of nanoporous anodic aluminum oxide membranes. In Appl. Phys. Lett. 114, 111901. https://doi.org/10.1063/1.50740831077-31180003-6951https://hdl.handle.net/11117/6242We have measured the thermal expansion of Ni nanowires (NWs) electrodeposited into self-organized nanoporous amorphous aluminum oxide (AAO) membranes without an Al substrate using X-ray diffraction between 110K and 350 K. Assuming a bulk-like thermal expansion of the isolated Ni NWs, this result indicates that AAO also has a negative thermal expansion. We estimate the thermal expansion of nanoporous AAO . We show that data obtained previously on the thermal expansion of metallic NWs grown in the nanoporous AAO may be interpreted as originating from a negative thermal expansion of the matrix.engNegative Thermal ExpansionNanoporous Aluminainfo:eu-repo/semantics/article