2020/08/25 by D. A. Khokhlov, R. S. Akzyanov
Physics and Astronomy · #Advanced Condensed Matter Physics #Biasing #Channel (broadcasting) #Condensed matter physics #Geometry #Interference (communication) #Liquid crystal #Physics #Quantum many-body systems #Quantum mechanics #Quasiparticle #Superconductivity #Symmetry (geometry) #Telecommunications #Topological Materials and Phenomena #Topology (electrical circuits) #Voltage #cond-mat.mes-hall
paper · pdf · doi:10.1016/j.physe.2021.114800
9 pages, 5 figures
arxiv created 2020/08/25 · openalex publication_date 2021/04/28 · arxiv updated 2021/06/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We theoretically investigate quasiparticle interference in superconducting topological insulators with the nematic order parameter. This order parameter spontaneously breaks the rotational symmetry of the crystal. Such rotational symmetry breaking is visible in the quasiparticle interference picture both in coordinate and momentum spaces. For a small bias voltages quasiparticle interference incommensurate with the crystal symmetry and shows nematic behavior. If the bias voltage is comparable with the value of the order parameter interference picture is similar to the interference picture of the normal state. Interference patterns are sensitive to the orientation of the nematicity. We compare our results with the existing experimental data.