vix.ing · top · new · best · stats · spec

Evidence of pair-density wave in spin-valley locked systems

2017/09/28 by Jordan Venderley, Eun-Ah Kim
Materials Science · Physics and Astronomy · #2D Materials and Applications #Biology #Charge density wave #Condensed matter physics #Context (archaeology) #Density matrix renormalization group #Hubbard model #Organic and Molecular Conductors Research #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Renormalization group #Spin (aerodynamics) #Superconductivity #cond-mat.supr-con

paper · pdf · doi:10.1126/sciadv.aat4698

published as Science Advances Vol. 5, no. 3 (2019)

arxiv created 2017/09/28 · openalex publication_date 2019/03/01 · arxiv updated 2019/09/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

superconductors, there is little theoretical understanding of the mechanism driving this exotic state. The challenge is that many competing states lie close in energy in seemingly simple models, such as the Hubbard model, in the strongly correlated regime. Here, we show that inversion symmetry breaking and the resulting spin-valley locking can promote PDWs over more commonly found spin stripes through frustration against magnetic order. Specifically, we find the first robust evidence for a PDW within density matrix renormalization group simulation of a simple fermionic model. Our results point to a tantalizing possibility in hole-doped group VI transition metal dichalcogenides, with spin-valley locked band structure and moderate correlations.

Citations