NMR of the two-dimensional 𝑆 = 1/2 Heisenberg antiferromagnet CuPOF

NMR of the two-dimensional 𝑆 = 1/2 Heisenberg antiferromagnet CuPOF

Dmytriieva, D.; Zhang, Z. T.; Uhlarz, M.; Landee, C. P.; Wosnitza, J.; KΓΌhne, M.

The metal-organic compound Cu(pz)2(2-OHpy)2, as well as high-field magnetometry. A low-temperature Minimum of the temperature-dependent local and uniform magnetizations at π‘‡π‘šπ‘–π‘› indicates a presence of the magnetic order. Within the ordered state, a splitting of the 1H NMR spectra reveals commensurate AF order, presumably of checkerboard type. The phase transition, manifested as a sharp maximum of the temperature-dependent 31P nuclear spin-lattice relaxation rate 1/𝑇1, occurs at temperatures slightly lower than π‘‡π‘šπ‘–π‘›, indicating an easy-plane anisotropy as well as a crossover between isotropic and XY behavior.

Involved research facilities

  • High Magnetic Field Laboratory (HLD)
  • Poster
    DPG-FrΓΌhjahrstagung der Sektion Kondensierte Materie (SKM) gemeinsam mit der European Physical Society (CMD), 11.-16.03.2018, Berlin, Deutschland

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