Multiple magnetization plateaus and magnetic structures in the S= 12 Heisenberg model on the checkerboard lattice

Katsuhiro Morita, Naokazu Shibata

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We study the ground state of the S=12 Heisenberg model on the checkerboard lattice in a magnetic field by the density matrix renormalization group method with the sine-square deformation. We obtain magnetization plateaus at M/Msat=0,14,38,12, and 34, where Msat is the saturated magnetization. The obtained 34 plateau state is consistent with the exact result, and the 12 plateau is found to have a four-spin resonating loop structure similar to the six-spin loop structure of the 13 plateau of the kagome lattice. Different four-spin loop structures are obtained in the 14 and 38 plateaus but no corresponding states exist in the kagome lattice. The 38 plateau has a unique magnetic structure of three types of four-spin local quantum states in a 42×22 magnetic unit cell with a 16-fold degeneracy.

Original languageEnglish
Article number140404
JournalPhysical Review B
Volume94
Issue number14
DOIs
Publication statusPublished - 2016 Oct 10

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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