Cation spin and superexchange interaction in oxide materials below and above spin crossover under high pressure

Dynamic and static muon-spin relaxation observed above and below the spin-crossover in Fe(II) complexes

The spin-crossover phenomenon is a cooperative low-spin (LS) to high-spin (HS) transition which can be initiated using temperature or light irradiation. We have used muon-spin relaxation (μSR) to study this transition in two salts which show this effect. μSR provides local magnetic information and hence a means of examining this transition from a local perspective. For both salts, the LS phase ...

Pressure and Temperature Sensors Using Two Spin Crossover Materials

The possibility of a new design concept for dual spin crossover based sensors for concomitant detection of both temperature and pressure is presented. It is conjectured from numerical results obtained by mean field approximation applied to a Ising-like model that using two different spin crossover compounds containing switching molecules with weak elastic interactions it is possible to simultan...

Spin state dependence of electrical conductivity of spin crossover materials.

We studied the spin state dependence of the electrical conductivity of the spin crossover compound [Fe(Htrz)(2)(trz)](BF(4)) (Htrz = 1H-1,2,4-triazole) by means of dc electrical measurements. The low spin state is characterized by higher conductance and lower thermal activation energy of the conductivity, when compared to the high spin state.

Spin crossover composite materials for electrothermomechanical actuators

Spin-Crossover Materials towards Microwave Radiation Switches

Microwave electromagnetic radiation that ranges from one meter to one millimetre wavelengths is finding numerous applications for wireless communication, navigation and detection, which makes materials able to tune microwave radiation getting widespread interest. Here we offer a new way to tune GHz frequency radiation by using spin-crossover complexes that are known to change their various phys...