Half magnetization plateau of a frustrated S = 1 antiferromagnetic chain

T. Tonegawa, H. Nakano, T. Sakai, K. Okamoto, K. Okunishi, Kiyohide Nomura

Research output: Contribution to journalConference article

Abstract

We numerically investigate the magnetization process of a frustrated S=1 chain with antiferromagnetic nearest-neighbor (nn) and next-nearest-neighbor (nnn) exchange interactions, which compete with each other, and also with uniaxial single-ion-type anisotropy energies. Special attention is paid to the half magnetization plateau which appears at the half of the saturation magnetization in the ground-state magnetization curve. We determine the parameter region where this plateau appears by employing the level spectroscopy method, and find that the plateau appears even in the absence of the single-ion-type anisotropy, if the ratio of the nnn to the nn interaction constant is in a specified region.

Original languageEnglish
Article number022065
JournalJournal of Physics: Conference Series
Volume200
Issue numberSECTION 2
DOIs
Publication statusPublished - Jan 1 2010

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plateaus
magnetization
anisotropy
ions
interactions
saturation
ground state
curves
spectroscopy
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Half magnetization plateau of a frustrated S = 1 antiferromagnetic chain. / Tonegawa, T.; Nakano, H.; Sakai, T.; Okamoto, K.; Okunishi, K.; Nomura, Kiyohide.

In: Journal of Physics: Conference Series, Vol. 200, No. SECTION 2, 022065, 01.01.2010.

Research output: Contribution to journalConference article

Tonegawa, T. ; Nakano, H. ; Sakai, T. ; Okamoto, K. ; Okunishi, K. ; Nomura, Kiyohide. / Half magnetization plateau of a frustrated S = 1 antiferromagnetic chain. In: Journal of Physics: Conference Series. 2010 ; Vol. 200, No. SECTION 2.
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