Pressure effects on organic radicals with ferromagnetic and antiferromagnetic interactions

摘要

Magnetic properties of stable organic biradicalsunder pressure are presented. The dimensional crossover fromtwo-dimension to one-dimension is induced by pressure inF_2PNNNO, whereas the properties of the corresponding one-dimensional material, PNNNO is almost independent of thepressure. The phase transition temperature of the quasi-one-dimensional antiferroobserved, whereas the intrachain interactionsare almost independent of the pressure.