2012/06/22 by Suk Bum Chung, Srinivas Raghu, S. Raghu +3 · 35 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Charge (physics) #Condensed matter physics #Magnetic and transport properties of perovskites and related materials #Order (exchange) #Pairing #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Scale (ratio) #Spin (aerodynamics) #Superconductivity #Thermodynamics #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.86.064525
published in Physical Review B 86(6) (American Physical Society) · 11 pages (6 pages for main text), 2 figures
arxiv created 2012/06/22 · openalex publication_date 2012/08/27 · arxiv updated 2012/09/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Given that Sr2RuO4 is a two-component p-wave superconductor, there exists the possibility of well defined collective modes corresponding to fluctuations of the relative phase and spin orientation of the two components of the order parameter. We demonstrate that at temperatures much below Tc, these modes have energies small compared to the pairing gap scale if the superconductivity arises primarily from the quasi-1D (dxz and dyz) bands, while it is known that their energies become comparable to the pairing gap scale if there is a substantial involvement of the quasi-2D (dxy) band. Therefore the orbital origin of the superconductivity can be determined by measuring the energies of these collective modes.