ENACHESCU, Cristian; TANASA, Radu; STANCU, Alexandru; CHASTANET, Guillaume; LÉTARD, Jean-François; LINARES, Jorge; VARRET, François

doi:10.1063/1.2167059

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ENACHESCU, Cristian
Department of Solid State and Theoretical Physics

TANASA, Radu
Department of Solid State and Theoretical Physics

STANCU, Alexandru
Department of Solid State and Theoretical Physics

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Journal of Applied Physics. 2006, vol. 99, n° 8, p. 08J504 (3 p.)

American Institute of Physics

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The light-induced bistability under permanent irradiation (LITH: light-induced thermal hysteresis), due to the competition between light irradiation and self-accelerated relaxation, shows crucially rate-dependent hysteresis. Major and minor hysteresis loops for [Fe(PM-BiA)2(NCS)2] spin crossover compound have been measured. Using appropriate master equations, distribution data from the first-order reversal curves diagrams of the purely thermal hysteresis, and parameter values previously derived from relaxation curves, we could simulate the LITH experimental data. The tunneling contribution to the relaxation rate revealed to be a key factor for the final agreement.< Réduire

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Spin crossover

Magnetic phase boundaries

Optical bistability

multistability

and switching

including local field effects

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Rate-dependent light-induced thermal hysteresis of [Fe(PM-BiA)2(NCS)2] spin transition complex

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