Persistent Spin Dynamics in the Ising Triangular-lattice Antiferromagnet Ba$_6$Nd$_2$Ti$_4$O$_{17}$

C. Y. Jiang; B. L. Chen; K. W. Chen; J. C. Jiao; Y. Wang; Q. Wu; N. Y. Zhang; M. Y. Zou; P. -C. Ho; O. O. Bernal; L. Shu

Persistent Spin Dynamics in the Ising Triangular-lattice Antiferromagnet Ba$_6$Nd$_2$Ti$_4$O$_{17}$

Strongly Correlated Electrons 2024-11-21 v1

Authors: C. Y. Jiang , B. L. Chen , K. W. Chen , J. C. Jiao , Y. Wang , Q. Wu , N. Y. Zhang , M. Y. Zou , P. -C. Ho , O. O. Bernal , L. Shu

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Abstract

We report results of magnetic susceptibility, specific heat, and muon spin relaxation ( $\mu$ SR) measurements on the polycrystalline Ba $_6$ Nd $_2$ Ti $_4$ O $_{17}$ , a disorder-free triangular-lattice antiferromagnet. The absence of long-range magnetic order or spin freezing is confirmed down to 30~mK, much less than the Curie-Weiss temperature -1.8~K. The magnetic and specific heat measurements reveal the effective-1/2 spins are Ising-like. The persistent spin dynamics is determined down to 37~mK. Our study present a remarkable example of Ising spins on the triangular lattice, which remains magnetically disordered at low temperatures and potentially hosts a quantum spin liquid ground state.

Keywords

magnetic susceptibility specific heat muon spin relaxation Ising antiferromagnet quantum spin liquid

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@article{arxiv.2411.13070,
  title  = {Persistent Spin Dynamics in the Ising Triangular-lattice Antiferromagnet Ba$_6$Nd$_2$Ti$_4$O$_{17}$},
  author = {C. Y. Jiang and B. L. Chen and K. W. Chen and J. C. Jiao and Y. Wang and Q. Wu and N. Y. Zhang and M. Y. Zou and P. -C. Ho and O. O. Bernal and L. Shu},
  journal= {arXiv preprint arXiv:2411.13070},
  year   = {2024}
}

Persistent Spin Dynamics in the Ising Triangular-lattice Antiferromagnet Ba$_6$Nd$_2$Ti$_4$O$_{17}$

Abstract

Keywords

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