Publications by authors named "Genchang Liu"
Article Synopsis
- A new experimental Fano profile resembling a flat line is created by adjusting the continuum path's amplitude when using an imaginary value of -i in the x-ray range.
- The interference in scattering cancels out the discrete atomic resonance, making it only possible to observe the continuum while the discrete state remains hidden.
- This research offers a new approach to studying invisibility and could help uncover hidden structures in complex systems, alongside advancing the understanding of two-path interference and nonlinear Fano resonance.
BC/Pd multilayers with small d-spacing can easily degrade in the air, and the exact degradation process is not clear. In this work, we studied the chemical modification of BC films and BC/Pd double layers stored in four different environments: a dry nitrogen environment, the atmosphere, a dry oxygen-rich environment, and a wet nitrogen environment. The XANES spectra of the BC/Pd layers placed in a dry oxygen-rich environment showed the most significant decrease in the σ* states of the B-C bonds and an increase in the π* states of the B-O bonds compared with the other samples.
View Article and Find Full Text PDFUltrathin Pd/BC multilayers are suitable X-ray mirrors working at the photon energy region of 7-20 keV. To further improve the layer structure, Pd/BC multilayers with a d-spacing of 2.5 nm were fabricated by magnetron sputtering using the heavy noble gas Kr and compared with the conventional ones fabricated by Ar.
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