Easy-Axis Kagom\'e Antiferromagnet: Local-Probe Study of Nd$_3$Ga$_5$SiO$_{14}$

A. Zorko; F. Bert; P. Mendels; P. Bordet; P. Lejay; J. Robert

doi:10.1103/PhysRevLett.100.147201

Easy-Axis Kagom\'e Antiferromagnet: Local-Probe Study of Nd$_3$Ga$_5$SiO$_{14}$

Strongly Correlated Electrons 2009-11-13 v2

Authors: A. Zorko , F. Bert , P. Mendels , P. Bordet , P. Lejay , J. Robert

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We report a local-probe investigation of the magnetically anisotropic kagom\'e compound Nd $_3$ Ga $_5$ SiO $_{14}$ . Our zero-field $\mu$ SR results provide a direct evidence of a fluctuating collective paramagnetic state down to 60 mK, supported by a wipe-out of the Ga nuclear magnetic resonance (NMR) signal below 25 K. At 60 mK a dynamics crossover to a much more static state is observed by $\mu$ SR in magnetic fields above 0.5 T. Accordingly, the NMR signal is recovered at low $T$ above a threshold field, revealing a rapid temperature and field variation of the magnetic fluctuations.

Keywords

kagom\'e antiferromagnet Nd$_3$Ga$_5$SiO$_{14}$ local-probe study $\mu$SR nuclear magnetic resonance magnetic fluctuations collective paramagnetic state

Cite

@article{arxiv.0712.2660,
  title  = {Easy-Axis Kagom\'e Antiferromagnet: Local-Probe Study of Nd$_3$Ga$_5$SiO$_{14}$},
  author = {A. Zorko and F. Bert and P. Mendels and P. Bordet and P. Lejay and J. Robert},
  journal= {arXiv preprint arXiv:0712.2660},
  year   = {2009}
}

Comments

4 pages, 4 figures

Related papers

View all related →