ISSN:
1434-6036
Keywords:
PACS. 64.60.My Metastable phases - 70.60.Es Relaxation effects - 75.90.+w Other topics in magnetic properties and materials - 78.20.Nv Thermooptical and photothermal effects
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: We investigate the behaviour of photo-excitable, bistable systems, under permanent light irradiation, in presence of relaxation towards the non-excited state. Cooperativity causes bistability of the steady state, leading to light-induced thermal and optical hysteresis (LITH and LIOH). The light-induced instability is expected to induce demixtion, i.e. the coexistence of domains of the two stable steady states. Such effects are evidenced by magnetic and reflectivity measurements on the spin-crossover solid solution: , with x= 0.3, 0.5, 0.85. Experimental data are in quantitative agreement with a simple macroscopic model which includes a non-linear relaxation term in the master equation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510050540
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