2012/06/02 by Yutaka Akagi, Yukitoshi Motome
Physics and Astronomy · #Advanced Condensed Matter Physics #Hexagonal lattice #Lattice (music) #Phase diagram #Quantum many-body systems #Scalar (mathematics) #Spins #Topological Materials and Phenomena #cond-mat.str-el
paper · pdf · doi:10.3938/jkps.63.405
published as Journal of the Korean Physical Society 63, 405 (2013) · 7 pages, 3 figures
arxiv created 2012/06/02 · openalex publication_date 2013/08/01 · arxiv updated 2015/06/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate the ground-state phase diagram of the Kondo lattice model with classical localized spins on triangular-to-kagome lattices by using a variational calculation. We identify the parameter regions where a four-sublattice noncoplanar order is stable with a finite spin scalar chirality while changing the lattice structure from triangular to kagome continuously. Although the noncoplanar spin states appear over a wide range of parameters, the spin configurations on the kagome network become coplanar as approaching the kagome lattice; eventually, the scalar chirality vanishes for the kagome lattice model.