Speaker: Kedar Damle (Tata Institute of Fundamental Research, Mumbai, India, host: Karlo Penc)
Title: Vacancy-induced local moment instability of short-range RVB spin liquids on triangular and kagome lattices
Date: Tuesday, 30 September 2025. 10:00
Place: Building 1, Conference room
Abstract:
Exploiting a connection between monomers of maximum-density dimer packings on the underlying diluted lattice and vacancy-induced local moments in gapped short-range RVB spin liquid states of triangular and kagome lattice antiferromagnets, we argue that weak vacancy disorder leads to a local moment instability on the triangular lattice. Further, the low-dilution regime is characterized by dramatic violations of self-averaging in such diluted triangular lattice antiferromagnets. In contrast, such spin liquid states of kagome lattice antiferromagnets are stable to weak vacancy disorder.
[based on: Ansari & KD PRL 132, 226504 (2024), Bhola & KD arXiv:2311.05634v2 (May2025)]
