1H-NMR on kagomé Lattice Antiferromagnetm-MPYNN\cdotBF4
Abstract
1H-NMR measurements for an organic radical antiferromagnet, m-MPYNN\cdotBF4, have been carried out in the temperature range down to 0.05 K and under the magnetic fields up to 70 kOe. The gapped magnetic state is found above about 10 kOe where the spin gap at zero field collapses due to the applied field. Further, the value of the effective gap shows an interesting dependence on the field, which is an attractive subject from the viewpoint of the effect of the applied field on a spin-gap system.
- Publication:
-
Progress of Theoretical Physics Supplement
- Pub Date:
- 2002
- DOI:
- 10.1143/PTPS.145.68
- Bibcode:
- 2002PThPS.145...68F