Spin-Peierls Transitions in Magnetic Donor-Acceptor Compounds of Tetrathiafulvalene (TTF) with Bisdithiolene Metal Complexes.

摘要

The spin-Peierls transition is considered as a progressive spin-lattice dimerization occurring below a transition temperature in a system of one-dimensional antiferromagnetic Heisenberg chains. In the simplest theories, the transition is second order and the ground state is a singlet with a magnetic gap. EPR linewidth observations over a broad temperature range are examined. Areas for further experimental and theoretical work are indicated, and a critical comparison is made of related observations on other materials.