Spectromicroscopy investigation uncovers anisotropic electronic band structures on the silver (110) surface, revealing how properties emerge when adjacent surface bands collide.
Silver mirrors reflect light naturally because no discrete optical transitions modify their spectra. Yet, nonlinear spectroscopy has gleaned the electronic bands and collective responses from its most stable Ag(111) surface. (110) surfaces, whose band structure is hardly explored, form at intersections of two proximate (111) surfaces. This union creates new anisotropic bands whose three-dimensional energy-{k}_∥ structures are investigated by powerful two-photon photoemission momentum spectromicroscopy. The spectra reveal how novel properties arise when bands of proximate surfaces collide.
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Li et al. (2022) studied this question.
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