Approach to control magnetic plateau in tetrameric magnetic systems

Shuling Wang, Denghui Ji, Si Cong Zhu, Shi Wei Zhao, Kai Lun Yao, Chi Hang Lam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

We study the magnetic behavior of a tetrameric magnetic system with four antiferromagnetic couplings(J1-J2-J3-J4), where J4 is the inter-cell coupling and J1,J2,J3 are the intra-cell couplings, by using Green's function theory. The Magnetic-field curves shows that there are three plateaus (M = 0, 1 and saturated magnetization) and two gapless phases distinguished by four critical lines, and the plateaus widen or narrow with the inter-cell coupling(J4), which are further explained using the energy spectrum. In addition, it is found that the magnetic contribution from each site of the unit cell is different due to the competition of the nearest neighboring pair interactions, which is demonstrated by the concurrence of the biparticle quantum state.

Original languageEnglish
Article number167050
JournalJournal of Magnetism and Magnetic Materials
Volume513
DOIs
Publication statusPublished - 1 Nov 2020

Keywords

  • A tetrameric magnetic system
  • Energy spectrum
  • Green's function theory
  • Saturated magnetization

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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