Evidence of spin singlet ground state in the frustrated antiferromagnetic ring Cr8 Ni

Yuji Furukawa, Kazuki Kiuchi, Ken Ichi Kumagai, Yoshitami Ajiro, Yasuo Narumi, Masahiro Iwaki, Koichi Kindo, Alberto Bianchi, Stefano Carretta, Paolo Santini, Ferdinando Borsa, Grigore A. Timco, Richard E.P. Winpenny

研究成果: Article査読

35 被引用数 (Scopus)

抄録

The magnetic properties of an odd spin number antiferromagnetic ring Cr8 Ni have been investigated by high-field magnetization, specific-heat, and nuclear-magnetic-resonance measurements at very low temperatures (below 1 K). It is found that the ground state of this frustrated spin ring is a singlet state with total spin value ST =0 and zero expectation value of the local spins. The energy-level structure for low-lying excited total spin state ST ≠ 0 shows a breakdown of the Landé interval rule in agreement with theoretical results. Evidences of sizeable Dzyaloshinski-Moriya interactions have been found in the magnetic-field dependence of low-temperature specific-heat and magnetization data.

本文言語English
論文番号134416
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
79
13
DOI
出版ステータスPublished - 2009 4 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

フィンガープリント

「Evidence of spin singlet ground state in the frustrated antiferromagnetic ring Cr8 Ni」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル