Sputtering yield reduction for nano-columnar W surfaces under D ion irradiation - Brötzner, J; Cupak, C; Fellinger, M; Biber, H; Lopez-Cazalilla, A; Granberg, F; Kporha, F; Mutzke, A; González-Arrabal, R; Aumayr, F (Nuclear Materials And Energy, 2023)