Gowoon Kim*, Bin Feng, Sangkyun Ryu, Hai Jun Cho, Hyoungjeen Jeen, Yuichi Ikuhara, and Hiromichi Ohta*, “Anisotropic Electrical Conductivity of Oxygen-Deficient Tungsten Oxide Films with Epitaxially Stabilized 1D Atomic Defect Tunnels”, ACS Appl. Mater. Interfaces 13, 6864-6869 (2021).