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The quasiparticle scattering interference phenomenon characterized bythe peaks in the local density of states is studied within the renormalizedmean field theory based on the Hubbard model. It is shown that thequasiparticle scattering interference pattern in the presence of singlepoint-like impurity is strongly energy dependent due to the dominant d-wavesymmetry gap. The present theoretical results mainly capture qualitativefeatures of the quasiparticle scattering interference phenomenon in cupratesuperconductors, showing that the quasiparticle scattering interference phenomenonis very closely related to the presence of impurity. More details could befound in the article “Quasiparticle scattering interference in the renormalizedHubbard model” by Shu-Hua Wang, Huai-Song Zhao, andFeng Yuan, Front. Phys. 10, 107401(2015). [Photo credits: Feng Yuan, College ofPhysics, Qingdao University, China]
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