Slow relaxation to equipartition in spring-chain systems

Slow magnetic relaxation in a cobalt magnetic chain.

A homospin ladder-like chain, [Co(Hdhq)(OAc)](n) (1; H(2)dhq = 2,3-dihydroxyquinoxaline), shows a single-chain-magnet-like (SCM-like) behavior with the characteristics of frequency dependence of the out-of-phase component in alternating current (ac) magnetic susceptibilities and hysteresis loops.

Slow relaxation and compaction of granular systems.

Granular materials are of substantial importance in many industrial and natural processes, yet their complex behaviours, ranging from mechanical properties of static packing to their dynamics, rheology and instabilities, are still poorly understood. Here we focus on the dynamics of compaction and its 'jamming' phenomena, outlining recent statistical mechanics approaches to describe it and their...

A tetranuclear cobalt(II) chain with slow magnetization relaxation.

A solvothermally derived tetranuclear cobalt(II) complex, [Co(4)(phen)(4)Cl(8)] (phen = phenanthroline), featuring a zig-zag backbone of {Co(μ(2)-Cl)(2)Co} planes, exhibits ferromagnetic exchange and slow relaxation of the magnetization and represents the first Co SMM with a linear core structure.

Slow Spin Relaxation in Two-Dimensional Electron Systems with Antidots

0 Thermodynamical relations in systems with aging and slow relaxation

The experimental time scale dependence of thermodynamical relations in nonequilibrium systems with slow dynamics is considered theoretically by using only the scaling law of the two-time correlation function and the generalized fluctuation-dissipation theorem. We show that there are two experimental time regimes characterized by different thermal properties. In the first regime where the waitin...