44 citations · 71 across the 10 of their papers we have counts for
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Three-photon photoemission on metallic transition metal dichalcogenide NiTe
Cheng-Tien Chiang, Mukesh Singh, Yu-Jhen Chuang +6
Three-photon photoemission (3PPE) signals on NiTe are observed for the first time upon ultraviolet excitations. In the energy range beyond two-photon excitations, an energy-m…
Multiple Softening Q-vectors Driving a Cascade of CDW Phases in
Zheng-Hong Li, Yung-Ting Lee, Yu-Chan Tai +8
Charge density wave (CDW) formation in two-dimensional materials is governed by complex competing lattice instabilities that remain incompletely understood. Here, we investigate th…
Time-resolved electron dynamics in antiferromagnetic CoO(001) thin films
Mathias Augstein, Friederike Wührl, Konrad Gillmeister +2
Ultrathin antiferromagnetic CoO(001)-(1x1) films of 2 and 4 monolayers (ML) on Ag(001) are investigated by time- and angle-resolved two-photon photoelectron (2PPE) spectroscopy. Pu…
Enhanced magnetic dichroism in darkfield UV photoemission electron microscopy
Maximilian Paleschke, David Huber, Friederike Wührl +4
Photoemission electron microscopy (PEEM) has evolved into an indispensable tool for structural and magnetic characterization of surfaces at the nanometer scale. In strong contrast…
Revealing the Charge Density Wave caused by Peierls instability in two-dimensional NbSe
Yung-Ting Lee, Po-Tuan Chen, Zheng-Hong Li +10
The formation of a charge density wave (CDW) in two-dimensional (2D) materials caused by Peierls instability is a controversial topic. This study investigates the extensively debat…
Electron pair emission from surfaces: Some general experimental considerations
R. Kamrla, W. Widdra, C. -T. Chiang +1
We discuss some experimental facets of electron pair emission from surfaces using two different experimental approaches. In the first case the instrument consists of a pair of hemi…