Rb-NMR study of the quasi-one dimensional competing spin-chain compound Rb2Cu2Mo3O12

Kazuki Matsui; Ayato Yagi; Yukihiro Hoshino; Sochiro Atarashi; Masashi Hase; Takahiko Sasaki; Takayuki Goto

doi:10.1103/PhysRevB.96.220402

Rb-NMR study of the quasi-one dimensional competing spin-chain compound Rb2Cu2Mo3O12

Strongly Correlated Electrons 2017-12-19 v1 Statistical Mechanics

Authors: Kazuki Matsui , Ayato Yagi , Yukihiro Hoshino , Sochiro Atarashi , Masashi Hase , Takahiko Sasaki , Takayuki Goto

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Abstract

Rb-NMR study has been performed on the quasi-one dimensional competing spin chain Rb2Cu2Mo3O12 with ferromagnetic and antiferromagnetic exchange interactions on nearest neighboring and next nearest neighboring spins, respectively. The system changes from a gapped ground state at zero field to the gapless state at H_C \simeq 2 T, where the existence of magnetic order below 1 K was demonstrated by a broadening of NMR spectrum, associated with a critical divergence of 1/T_1. In higher temperature region, 1/T_1 showed a power-law type temperature dependence, from which the field dependence of Luttinger parameter K was obtained and compared with theoretical calculations based on the spin nematic Tomonaga Luttinger Liquid (TLL) state.

Keywords

rb-nmr spin chain competing exchange tomonaga luttinger liquid spin nematic rb2cu2mo3o12

Cite

@article{arxiv.1712.06213,
  title  = {Rb-NMR study of the quasi-one dimensional competing spin-chain compound Rb2Cu2Mo3O12},
  author = {Kazuki Matsui and Ayato Yagi and Yukihiro Hoshino and Sochiro Atarashi and Masashi Hase and Takahiko Sasaki and Takayuki Goto},
  journal= {arXiv preprint arXiv:1712.06213},
  year   = {2017}
}

Rb-NMR study of the quasi-one dimensional competing spin-chain compound Rb2Cu2Mo3O12

Abstract

Keywords

Cite

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