Two magnetization plateaus in the kagome fluoride Cs2LiTi3 F12

Ryu Shirakami, Hiroaki Ueda, Harald O. Jeschke, Hiroki Nakano, Shintaro Kobayashi, Akira Matsuo, Tôru Sakai, Naoyuki Katayama, Hiroshi Sawa, Koichi Kindo, Chishiro Michioka, Kazuyoshi Yoshimura

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We synthesized a kagome fluoride Cs2LiTi3F12 with S=1/2 spins, and studied magnetic properties of the compound. The temperature dependence of the magnetic susceptibility indicates that it has dominant antiferromagnetic interactions and that it has no magnetic order down to 2 K. We found two magnetization plateaus in its magnetization process approximately at 1/3 and 0.8 μB per Ti. The monoclinic crystal structure gives four inequivalent nearest-neighbor exchange interactions. Our density functional theory calculations suggest that three of them are antiferromagnetic and one of them is weakly ferromagnetic, resulting in a magnetic system composed of antiferromagnetically coupled linear chains and Δ chains. This explains the observed suppression of magnetic order. Numerical diagonalization gives a magnetization curve in good agreement with the experimental results.

Original languageEnglish
Article number174401
JournalPhysical Review B
Volume100
Issue number17
DOIs
Publication statusPublished - Nov 1 2019

    Fingerprint

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Shirakami, R., Ueda, H., Jeschke, H. O., Nakano, H., Kobayashi, S., Matsuo, A., Sakai, T., Katayama, N., Sawa, H., Kindo, K., Michioka, C., & Yoshimura, K. (2019). Two magnetization plateaus in the kagome fluoride Cs2LiTi3 F12. Physical Review B, 100(17), [174401]. https://doi.org/10.1103/PhysRevB.100.174401