Magnetic Field Induced Phases in the Quantum Antiferromagnet Cs$_2$CuCl$_4$ as revealed by NMR.

ORAL

Abstract

We report nuclear magnetic resonance (NMR) measurements on the 2D frustrated quantum antiferromagnet Cs$_2$CuCl$_4$.$^{133}$Cs spectra at temperatures down to $60$\,mK and in external magnetic field up to $15$\,T are presented. At the lowest temperature we observe multiple field induced quantum phase transitions in a magnetic field applied within the spin plane. The phases are distinguished by their local spin textures. The possible nature of these phases and their underlying spin structure are discussed. Furthermore, simulations of spectra are presented.

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Authors

  • M.-A. Vachon

  • V.F. Mitrovi{\'c}

  • O. Ma

  • J.B. Marston

    • Brown University

  • A.P. Reyes

  • P. Kuhns

    • NHMFL

  • R. Coldea

    • University of Bristol