%AHepting, M.%AChaix, L.%AHuang, E.%AFumagalli, R.%APeng, Y.%AMoritz, B.%AKummer, K.%ABrookes, N.%ALee, W.%AHashimoto, M.%ASarkar, T.%AHe, J.-F.%ARotundu, C.%ALee, Y.%AGreene, R.%ABraicovich, L.%AGhiringhelli, G.%AShen, Z.%ADevereaux, T.%ALee, W.%BJournal Name: Nature; Journal Volume: 563; Journal Issue: 7731 %D2018%I %JJournal Name: Nature; Journal Volume: 563; Journal Issue: 7731 %K %MOSTI ID: 10096473 %PMedium: X %TThree-dimensional collective charge excitations in electron-doped copper oxide superconductors %X %0Journal Article