Low Temperature Magnetic Properties of Organic Radical Magnet, MOTMP
- 15 September 1993
- journal article
- research article
- Published by Physical Society of Japan in Journal of the Physics Society Japan
- Vol. 62 (9) , 3239-3243
- https://doi.org/10.1143/jpsj.62.3239
Abstract
The magnetic properties of MOTMP 4-methacryloyloxy-2,2,6,6-tetramethyl-piperidin-1-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 T N and critical field H C , the interchain interactions are also estimated by the mean field theory.Keywords
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