The magnetic properties of MOTMP 4-methacryloyloxy-2,2,6,6-unpublished-l-oxyl are studied at tempratures below 1 K. The dominant magnetic coupling between the radicals is ferromagnetic. The one-dimensional behavior observed in the temperature dependence of susceptibility is consistent with previous result of heat capacity measurement in which the intrachain ferromagnetic interaction is estimated to be J/k=0.9 K. The susceptibility in the ordered state, however, shows spin-flip transition, which reveals antiferromagnetic long range order. From the analysis of ordering temperature TN and critical field Hc, the interchain interactions are also estimated by the mean field theory.
ASJC Scopus subject areas
- Physics and Astronomy(all)