单词 | photoemission |
例句 | To do so, researchers typically carry out photoemission experiments, in which they shine a single photon of light onto a sample, that in turn kicks out a single electron. Physicists trap electrons in a 3D crystal 2023-11-08T05:00:00Z In addition, these authors used a technique called angle-resolved photoemission spectroscopy to study the electronic structure at the material’s surface. Magnetic and topological order united in a crystal 2019-12-17T05:00:00Z Ossiander and colleagues overcame this limitation using a clever two-stage approach, which they demonstrated by examining photoemission from a clean tungsten surface using an attosecond streak camera. Timing the action of light on matter 2018-09-18T04:00:00Z Observation of Dirac cone band dispersions in FeSe thin films by photoemission spectroscopy. Massive Dirac fermions in a ferromagnetic kagome metal 2018-03-18T04:00:00Z Figure 1 | Measurement of an absolute photoemission delay. Timing the action of light on matter 2018-09-18T04:00:00Z Scientists have used photoemission to confirm flat-band states in various 2D materials. Physicists trap electrons in a 3D crystal 2023-11-08T05:00:00Z Finally, they used the known absolute photoemission delay for helium and the measured relative delays to determine the absolute photoemission delay for the tungsten surface. Timing the action of light on matter 2018-09-18T04:00:00Z They then applied an attosecond-duration extreme-ultraviolet light pulse to the material and measured the relative delay in photoemission from the tungsten surface and from the atoms in the iodine molecules. Timing the action of light on matter 2018-09-18T04:00:00Z The absolute photoemission delay for helium is therefore known. Timing the action of light on matter 2018-09-18T04:00:00Z Ossiander et al. used this result in combination with their measured relative delays to determine absolute photoemission delays for the tungsten surface. Timing the action of light on matter 2018-09-18T04:00:00Z Ossiander et al. report photoemission delays for several different energy levels of the investigated tungsten surface. Timing the action of light on matter 2018-09-18T04:00:00Z A promising future application of the technique is the characterization of more-complex electronic effects — such as correlation, dissipation and decoherence — using data on absolute photoemission delays. Timing the action of light on matter 2018-09-18T04:00:00Z |
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